91950756654078 has 24 divisors (see below), whose sum is σ = 227687587905648. Its totient is φ = 26271644758272.

The previous prime is 91950756654061. The next prime is 91950756654131. The reversal of 91950756654078 is 87045665705919.

91950756654078 is a `hidden beast` number, since 9 + 1 + 9 + 5 + 0 + 7 + 5 + 6 + 6 + 540 + 78 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 91950756653997 and 91950756654015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364883954851 + ... + 364883955102.

It is an arithmetic number, because the mean of its divisors is an integer number (9486982829402).

Almost surely, 2^{91950756654078} is an apocalyptic number.

91950756654078 is an abundant number, since it is smaller than the sum of its proper divisors (135736831251570).

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

91950756654078 is a wasteful number, since it uses less digits than its factorization.

91950756654078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729767909968 (or 729767909965 counting only the distinct ones).

The product of its (nonzero) digits is 571536000, while the sum is 72.

The spelling of 91950756654078 in words is "ninety-one trillion, nine hundred fifty billion, seven hundred fifty-six million, six hundred fifty-four thousand, seventy-eight".