91675020288 has 176 divisors, whose sum is σ = 252363330560. Its totient is φ = 29569204224.

The previous prime is 91675020257. The next prime is 91675020293. The reversal of 91675020288 is 88202057619.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14395281 + ... + 14401647.

It is an arithmetic number, because the mean of its divisors is an integer number (1433882560).

Almost surely, 2^91675020288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91675020288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126181665280).

91675020288 is an abundant number, since it is smaller than the sum of its proper divisors (160688310272).

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

91675020288 is a wasteful number, since it uses less digits than its factorization.

91675020288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542 (or 6524 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 91675020288 in words is "ninety-one billion, six hundred seventy-five million, twenty thousand, two hundred eighty-eight".