172987638111358 has 16 divisors (see below), whose sum is σ = 296550405550080. Its totient is φ = 74137516993656.

The previous prime is 172987638111341. The next prime is 172987638111403. The reversal of 172987638111358 is 853111836789271.

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, 46104663 + ... + 49715341.

It is an arithmetic number, because the mean of its divisors is an integer number (18534400346880).

Almost surely, 2^{172987638111358} is an apocalyptic number.

172987638111358 is a deficient number, since it is larger than the sum of its proper divisors (123562767438722).

172987638111358 is a wasteful number, since it uses less digits than its factorization.

172987638111358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032831.

The product of its digits is 121927680, while the sum is 70.

The spelling of 172987638111358 in words is "one hundred seventy-two trillion, nine hundred eighty-seven billion, six hundred thirty-eight million, one hundred eleven thousand, three hundred fifty-eight".