145826171840 has 56 divisors (see below), whose sum is σ = 349460466432. Its totient is φ = 57958917120.

The previous prime is 145826171839. The next prime is 145826171851. The reversal of 145826171840 is 48171628541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1401056 + ... + 1501535.

It is an arithmetic number, because the mean of its divisors is an integer number (6240365472).

Almost surely, 2^145826171840 is an apocalyptic number.

145826171840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145826171840 is an abundant number, since it is smaller than the sum of its proper divisors (203634294592).

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

145826171840 is a wasteful number, since it uses less digits than its factorization.

145826171840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902765 (or 2902755 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 145826171840 in words is "one hundred forty-five billion, eight hundred twenty-six million, one hundred seventy-one thousand, eight hundred forty".