91008452715 has 32 divisors (see below), whose sum is σ = 154343278656. Its totient is φ = 45634007040.

The previous prime is 91008452713. The next prime is 91008452809. The reversal of 91008452715 is 51725480019.

It is not a de Polignac number, because 91008452715 - 2¹ = 91008452713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91008452713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50319 + ... + 429591.

It is an arithmetic number, because the mean of its divisors is an integer number (4823227458).

Almost surely, 2^91008452715 is an apocalyptic number.

91008452715 is a deficient number, since it is larger than the sum of its proper divisors (63334825941).

91008452715 is a wasteful number, since it uses less digits than its factorization.

91008452715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380239.

The product of its (nonzero) digits is 100800, while the sum is 42.

The spelling of 91008452715 in words is "ninety-one billion, eight million, four hundred fifty-two thousand, seven hundred fifteen".