88691078745 has 24 divisors (see below), whose sum is σ = 153851687496. Its totient is φ = 47264836608.

The previous prime is 88691078713. The next prime is 88691078783. The reversal of 88691078745 is 54787019688.

It can be written as a sum of positive squares in 4 ways, for example, as 34338684249 + 54352394496 = 185307^2 + 233136^2 .

It is not a de Polignac number, because 88691078745 - 2⁵ = 88691078713 is a prime.

It is a super-2 number, since 2×88691078745² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 714232 + ... + 829161.

It is an arithmetic number, because the mean of its divisors is an integer number (6410486979).

Almost surely, 2^88691078745 is an apocalyptic number.

It is an amenable number.

88691078745 is a deficient number, since it is larger than the sum of its proper divisors (65160608751).

88691078745 is a wasteful number, since it uses less digits than its factorization.

88691078745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544681 (or 1544678 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 63.

The spelling of 88691078745 in words is "eighty-eight billion, six hundred ninety-one million, seventy-eight thousand, seven hundred forty-five".