91419150736 has 45 divisors (see below), whose sum is σ = 178420448323. Its totient is φ = 45377588480.

The previous prime is 91419150679. The next prime is 91419150737. The reversal of 91419150736 is 63705191419.

The square root of 91419150736 is 302356.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10535790736 + 80883360000 = 102644^2 + 284400^2 .

It is a super-2 number, since 2×91419150736² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91419150737) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 325334916 + ... + 325335196.

Almost surely, 2^91419150736 is an apocalyptic number.

91419150736 is the 302356-th square number.

It is an amenable number.

91419150736 is a deficient number, since it is larger than the sum of its proper divisors (87001297587).

91419150736 is an frugal number, since it uses more digits than its factorization.

91419150736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108 (or 552 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 91419150736 in words is "ninety-one billion, four hundred nineteen million, one hundred fifty thousand, seven hundred thirty-six".