145477990476 has 144 divisors (see below), whose sum is σ = 456163262464. Its totient is φ = 38065603968.

The previous prime is 145477990381. The next prime is 145477990523. The reversal of 145477990476 is 674099774541.

145477990476 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 7 + 79 + 90 + 476 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241221 + ... + 590883.

Almost surely, 2^145477990476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145477990476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228081631232).

145477990476 is an abundant number, since it is smaller than the sum of its proper divisors (310685271988).

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

145477990476 is a wasteful number, since it uses less digits than its factorization.

145477990476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349820 (or 349815 counting only the distinct ones).

The product of its (nonzero) digits is 53343360, while the sum is 63.

The spelling of 145477990476 in words is "one hundred forty-five billion, four hundred seventy-seven million, nine hundred ninety thousand, four hundred seventy-six".