88778128627734 has 32 divisors (see below), whose sum is σ = 218530778161920. Its totient is φ = 23414011945632.

The previous prime is 88778128627733. The next prime is 88778128627819. The reversal of 88778128627734 is 43772682187788.

It is a super-2 number, since 2×88778128627734² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

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 88778128627734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88778128627733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81298652044 + ... + 81298653135.

It is an arithmetic number, because the mean of its divisors is an integer number (6829086817560).

Almost surely, 2^{88778128627734} is an apocalyptic number.

88778128627734 is an abundant number, since it is smaller than the sum of its proper divisors (129752649534186).

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

88778128627734 is a wasteful number, since it uses less digits than its factorization.

88778128627734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162597305204.

The product of its digits is 2832334848, while the sum is 78.

The spelling of 88778128627734 in words is "eighty-eight trillion, seven hundred seventy-eight billion, one hundred twenty-eight million, six hundred twenty-seven thousand, seven hundred thirty-four".