90767884078 has 8 divisors (see below), whose sum is σ = 136275267168. Its totient is φ = 45342795024.

The previous prime is 90767884063. The next prime is 90767884087. The reversal of 90767884078 is 87048876709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20570751 + ... + 20575162.

It is an arithmetic number, because the mean of its divisors is an integer number (17034408396).

Almost surely, 2^90767884078 is an apocalyptic number.

90767884078 is a deficient number, since it is larger than the sum of its proper divisors (45507383090).

90767884078 is a wasteful number, since it uses less digits than its factorization.

90767884078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41147018.

The product of its (nonzero) digits is 37933056, while the sum is 64.

The spelling of 90767884078 in words is "ninety billion, seven hundred sixty-seven million, eight hundred eighty-four thousand, seventy-eight".