91927454620 has 12 divisors (see below), whose sum is σ = 193047654744. Its totient is φ = 36770981840.

The previous prime is 91927454603. The next prime is 91927454629. The reversal of 91927454620 is 2645472919.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91927454629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2298186346 + ... + 2298186385.

It is an arithmetic number, because the mean of its divisors is an integer number (16087304562).

Almost surely, 2^91927454620 is an apocalyptic number.

It is an amenable number.

91927454620 is an abundant number, since it is smaller than the sum of its proper divisors (101120200124).

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

91927454620 is a wasteful number, since it uses less digits than its factorization.

91927454620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4596372740 (or 4596372738 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 91927454620 in words is "ninety-one billion, nine hundred twenty-seven million, four hundred fifty-four thousand, six hundred twenty".