91348513451344 has 10 divisors (see below), whose sum is σ = 176987744812010. Its totient is φ = 45674256725664.

The previous prime is 91348513451249. The next prime is 91348513451347. The reversal of 91348513451344 is 44315431584319.

It can be written as a sum of positive squares in only one way, i.e., 72570157891344 + 18778355560000 = 8518812^2 + 4333400^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91348513451347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2854641045339 + ... + 2854641045370.

It is an arithmetic number, because the mean of its divisors is an integer number (17698774481201).

Almost surely, 2^{91348513451344} is an apocalyptic number.

It is an amenable number.

91348513451344 is a deficient number, since it is larger than the sum of its proper divisors (85639231360666).

91348513451344 is a wasteful number, since it uses less digits than its factorization.

91348513451344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709282090717 (or 5709282090711 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 55.

The spelling of 91348513451344 in words is "ninety-one trillion, three hundred forty-eight billion, five hundred thirteen million, four hundred fifty-one thousand, three hundred forty-four".