91872510245 has 8 divisors (see below), whose sum is σ = 110268579840. Its totient is φ = 73483629840.

The previous prime is 91872510239. The next prime is 91872510271. The reversal of 91872510245 is 54201527819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91872510245 - 2⁶ = 91872510181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91872510196 and 91872510205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1769141 + ... + 1820330.

It is an arithmetic number, because the mean of its divisors is an integer number (13783572480).

Almost surely, 2^91872510245 is an apocalyptic number.

It is an amenable number.

91872510245 is a deficient number, since it is larger than the sum of its proper divisors (18396069595).

91872510245 is a wasteful number, since it uses less digits than its factorization.

91872510245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594595.

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 91872510245 in words is "ninety-one billion, eight hundred seventy-two million, five hundred ten thousand, two hundred forty-five".