31352738138 has 16 divisors (see below), whose sum is σ = 49801215744. Its totient is φ = 14752543680.

The previous prime is 31352738101. The next prime is 31352738177. The reversal of 31352738138 is 83183725313.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279581 + ... + 375327.

It is an arithmetic number, because the mean of its divisors is an integer number (3112575984).

Almost surely, 2^31352738138 is an apocalyptic number.

31352738138 is a deficient number, since it is larger than the sum of its proper divisors (18448477606).

31352738138 is a wasteful number, since it uses less digits than its factorization.

31352738138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105397.

The product of its digits is 362880, while the sum is 44.

The spelling of 31352738138 in words is "thirty-one billion, three hundred fifty-two million, seven hundred thirty-eight thousand, one hundred thirty-eight".