91143202635248 has 20 divisors (see below), whose sum is σ = 176884763062800. Its totient is φ = 45495521844864.

The previous prime is 91143202635227. The next prime is 91143202635257. The reversal of 91143202635248 is 84253620234119.

It is a junction number, because it is equal to n+sod(n) for n = 91143202635196 and 91143202635205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4754957165 + ... + 4754976332.

It is an arithmetic number, because the mean of its divisors is an integer number (8844238153140).

Almost surely, 2^{91143202635248} is an apocalyptic number.

It is an amenable number.

91143202635248 is a deficient number, since it is larger than the sum of its proper divisors (85741560427552).

91143202635248 is a wasteful number, since it uses less digits than its factorization.

91143202635248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9509934104 (or 9509934098 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 91143202635248 in words is "ninety-one trillion, one hundred forty-three billion, two hundred two million, six hundred thirty-five thousand, two hundred forty-eight".