137921395470 has 32 divisors (see below), whose sum is σ = 331448671008. Its totient is φ = 36730447488.

The previous prime is 137921395457. The next prime is 137921395487. The reversal of 137921395470 is 74593129731.

It is a super-2 number, since 2×137921395470² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3013869 + ... + 3059288.

It is an arithmetic number, because the mean of its divisors is an integer number (10357770969).

Almost surely, 2^137921395470 is an apocalyptic number.

137921395470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137921395470 is an abundant number, since it is smaller than the sum of its proper divisors (193527275538).

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

137921395470 is a wasteful number, since it uses less digits than its factorization.

137921395470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6073924.

The product of its (nonzero) digits is 1428840, while the sum is 51.

The spelling of 137921395470 in words is "one hundred thirty-seven billion, nine hundred twenty-one million, three hundred ninety-five thousand, four hundred seventy".