139864651078 has 16 divisors (see below), whose sum is σ = 225980476416. Its totient is φ = 64733989320.

The previous prime is 139864651063. The next prime is 139864651081. The reversal of 139864651078 is 870156468931.

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, 49039476 + ... + 49042327.

It is an arithmetic number, because the mean of its divisors is an integer number (14123779776).

Almost surely, 2^139864651078 is an apocalyptic number.

139864651078 is a deficient number, since it is larger than the sum of its proper divisors (86115825338).

139864651078 is a wasteful number, since it uses less digits than its factorization.

139864651078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98081859.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 139864651078 in words is "one hundred thirty-nine billion, eight hundred sixty-four million, six hundred fifty-one thousand, seventy-eight".