88778528402 has 4 divisors (see below), whose sum is σ = 133167792606. Its totient is φ = 44389264200.

The previous prime is 88778528383. The next prime is 88778528429. The reversal of 88778528402 is 20482587788.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 63867903841 + 24910624561 = 252721^2 + 157831^2 .

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 as a sum of consecutive naturals, namely, 22194632099 + ... + 22194632102.

Almost surely, 2^88778528402 is an apocalyptic number.

88778528402 is a deficient number, since it is larger than the sum of its proper divisors (44389264204).

88778528402 is a wasteful number, since it uses less digits than its factorization.

88778528402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44389264203.

The product of its (nonzero) digits is 16056320, while the sum is 59.

The spelling of 88778528402 in words is "eighty-eight billion, seven hundred seventy-eight million, five hundred twenty-eight thousand, four hundred two".