88778877406 has 4 divisors (see below), whose sum is σ = 133168316112. Its totient is φ = 44389438702.

The previous prime is 88778877391. The next prime is 88778877431. The reversal of 88778877406 is 60477887788.

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

It is a congruent number.

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, 22194719350 + ... + 22194719353.

It is an arithmetic number, because the mean of its divisors is an integer number (33292079028).

Almost surely, 2^88778877406 is an apocalyptic number.

88778877406 is a deficient number, since it is larger than the sum of its proper divisors (44389438706).

88778877406 is a wasteful number, since it uses less digits than its factorization.

88778877406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44389438705.

The product of its (nonzero) digits is 236027904, while the sum is 70.

The spelling of 88778877406 in words is "eighty-eight billion, seven hundred seventy-eight million, eight hundred seventy-seven thousand, four hundred six".