91544646376 has 48 divisors (see below), whose sum is σ = 178414542540. Its totient is φ = 44033525760.

The previous prime is 91544646371. The next prime is 91544646397. The reversal of 91544646376 is 67364644519.

It can be written as a sum of positive squares in 6 ways, for example, as 11554100100 + 79990546276 = 107490^2 + 282826^2 .

It is not an unprimeable number, because it can be changed into a prime (91544646371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1839096 + ... + 1888216.

Almost surely, 2^91544646376 is an apocalyptic number.

It is an amenable number.

91544646376 is a deficient number, since it is larger than the sum of its proper divisors (86869896164).

91544646376 is a wasteful number, since it uses less digits than its factorization.

91544646376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49462 (or 49429 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 91544646376 in words is "ninety-one billion, five hundred forty-four million, six hundred forty-six thousand, three hundred seventy-six".