91343120144 has 40 divisors (see below), whose sum is σ = 181143510240. Its totient is φ = 44597000448.

The previous prime is 91343120137. The next prime is 91343120171. The reversal of 91343120144 is 44102134319.

It is a self number, because there is not a number n which added to its sum of digits gives 91343120144.

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, 2754092 + ... + 2787060.

It is an arithmetic number, because the mean of its divisors is an integer number (4528587756).

Almost surely, 2^91343120144 is an apocalyptic number.

It is an amenable number.

91343120144 is a deficient number, since it is larger than the sum of its proper divisors (89800390096).

91343120144 is a wasteful number, since it uses less digits than its factorization.

91343120144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37047 (or 37041 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 91343120144 in words is "ninety-one billion, three hundred forty-three million, one hundred twenty thousand, one hundred forty-four".