91854797154 has 16 divisors (see below), whose sum is σ = 194516041248. Its totient is φ = 28817191232.

The previous prime is 91854797077. The next prime is 91854797213. The reversal of 91854797154 is 45179745819.

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, 450268512 + ... + 450268715.

It is an arithmetic number, because the mean of its divisors is an integer number (12157252578).

Almost surely, 2^91854797154 is an apocalyptic number.

91854797154 is an abundant number, since it is smaller than the sum of its proper divisors (102661244094).

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

91854797154 is a wasteful number, since it uses less digits than its factorization.

91854797154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900537249.

The product of its digits is 12700800, while the sum is 60.

The spelling of 91854797154 in words is "ninety-one billion, eight hundred fifty-four million, seven hundred ninety-seven thousand, one hundred fifty-four".