91262135884811 has 16 divisors (see below), whose sum is σ = 93920956663968. Its totient is φ = 88613619494400.

The previous prime is 91262135884807. The next prime is 91262135884951. The reversal of 91262135884811 is 11848853126219.

It is a cyclic number.

It is not a de Polignac number, because 91262135884811 - 2² = 91262135884807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91262135889811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34347776 + ... + 36909266.

It is an arithmetic number, because the mean of its divisors is an integer number (5870059791498).

Almost surely, 2^{91262135884811} is an apocalyptic number.

91262135884811 is a deficient number, since it is larger than the sum of its proper divisors (2658820779157).

91262135884811 is a wasteful number, since it uses less digits than its factorization.

91262135884811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2563502.

The product of its digits is 6635520, while the sum is 59.

The spelling of 91262135884811 in words is "ninety-one trillion, two hundred sixty-two billion, one hundred thirty-five million, eight hundred eighty-four thousand, eight hundred eleven".