2691508936740 has 96 divisors (see below), whose sum is σ = 8116391861760. Its totient is φ = 662487952896.

The previous prime is 2691508936723. The next prime is 2691508936769. The reversal of 2691508936740 is 476398051962.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15324702 + ... + 15499338.

It is an arithmetic number, because the mean of its divisors is an integer number (84545748560).

It is a 1-persistent number, because it is pandigital, but 2⋅2691508936740 = 5383017873480 is not.

Almost surely, 2^{2691508936740} is an apocalyptic number.

2691508936740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2691508936740 is an abundant number, since it is smaller than the sum of its proper divisors (5424882925020).

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

2691508936740 is a wasteful number, since it uses less digits than its factorization.

2691508936740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194421 (or 194419 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 2691508936740 in words is "two trillion, six hundred ninety-one billion, five hundred eight million, nine hundred thirty-six thousand, seven hundred forty".