87926744762978 has 32 divisors (see below), whose sum is σ = 146337825208320. Its totient is φ = 39284184839760.

The previous prime is 87926744762951. The next prime is 87926744763041.

87926744762978 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×87926744762978² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87926744762978.

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, 5571575 + ... + 14383877.

It is an arithmetic number, because the mean of its divisors is an integer number (4573057037760).

Almost surely, 2^{87926744762978} is an apocalyptic number.

87926744762978 is a deficient number, since it is larger than the sum of its proper divisors (58411080445342).

87926744762978 is a wasteful number, since it uses less digits than its factorization.

87926744762978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8820062.

The product of its digits is 28677390336, while the sum is 86.

The spelling of 87926744762978 in words is "eighty-seven trillion, nine hundred twenty-six billion, seven hundred forty-four million, seven hundred sixty-two thousand, nine hundred seventy-eight".