87902022020978 has 16 divisors (see below), whose sum is σ = 143839817331840. Its totient is φ = 39955424295600.

The previous prime is 87902022020957. The next prime is 87902022020983.

It is a happy number.

87902022020978 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37930583 + ... + 40181253.

It is an arithmetic number, because the mean of its divisors is an integer number (8989988583240).

Almost surely, 2^{87902022020978} is an apocalyptic number.

87902022020978 is a deficient number, since it is larger than the sum of its proper divisors (55937795310862).

87902022020978 is a wasteful number, since it uses less digits than its factorization.

87902022020978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4025953.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 87902022020978 in words is "eighty-seven trillion, nine hundred two billion, twenty-two million, twenty thousand, nine hundred seventy-eight".