914529147840 has 672 divisors, whose sum is σ = 4094193081600. Its totient is φ = 190031063040.

The previous prime is 914529147739. The next prime is 914529147841. The reversal of 914529147840 is 48741925419.

914529147840 is a `hidden beast` number, since 9 + 1 + 4 + 529 + 1 + 4 + 78 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (672).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (914529147841) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4558771 + ... + 4755149.

Almost surely, 2^914529147840 is an apocalyptic number.

914529147840 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 914529147840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047096540800).

914529147840 is an abundant number, since it is smaller than the sum of its proper divisors (3179663933760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

914529147840 is a wasteful number, since it uses less digits than its factorization.

914529147840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196430 (or 196407 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 914529147840 in words is "nine hundred fourteen billion, five hundred twenty-nine million, one hundred forty-seven thousand, eight hundred forty".