91852209402 has 32 divisors (see below), whose sum is σ = 188727963072. Its totient is φ = 29780659584.

The previous prime is 91852209359. The next prime is 91852209437. The reversal of 91852209402 is 20490225819.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671598 + ... + 796710.

It is an arithmetic number, because the mean of its divisors is an integer number (5897748846).

Almost surely, 2^91852209402 is an apocalyptic number.

91852209402 is an abundant number, since it is smaller than the sum of its proper divisors (96875753670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91852209402 is a wasteful number, since it uses less digits than its factorization.

91852209402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128462.

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 91852209402 in words is "ninety-one billion, eight hundred fifty-two million, two hundred nine thousand, four hundred two".