2690641577 has 8 divisors (see below), whose sum is σ = 2899856064. Its totient is φ = 2481747408.

The previous prime is 2690641573. The next prime is 2690641579. The reversal of 2690641577 is 7751460962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2690641577 - 2² = 2690641573 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2690641573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62483 + ... + 96360.

It is an arithmetic number, because the mean of its divisors is an integer number (362482008).

Almost surely, 2^2690641577 is an apocalyptic number.

It is an amenable number.

2690641577 is a deficient number, since it is larger than the sum of its proper divisors (209214487).

2690641577 is a wasteful number, since it uses less digits than its factorization.

2690641577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160159.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 2690641577 is about 51871.3945927811. The cubic root of 2690641577 is about 1390.8659747109.

The spelling of 2690641577 in words is "two billion, six hundred ninety million, six hundred forty-one thousand, five hundred seventy-seven".