2957491669 has 4 divisors (see below), whose sum is σ = 3226354560. Its totient is φ = 2688628780.

The previous prime is 2957491657. The next prime is 2957491727. The reversal of 2957491669 is 9661947592.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2957491669 is a prime.

It is a super-2 number, since 2×2957491669² = 17493513944408811122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2957491619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134431429 + ... + 134431450.

It is an arithmetic number, because the mean of its divisors is an integer number (806588640).

Almost surely, 2^2957491669 is an apocalyptic number.

It is an amenable number.

2957491669 is a deficient number, since it is larger than the sum of its proper divisors (268862891).

2957491669 is a wasteful number, since it uses less digits than its factorization.

2957491669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268862890.

The product of its digits is 7348320, while the sum is 58.

The square root of 2957491669 is about 54382.8251288952. The cubic root of 2957491669 is about 1435.4051827214.

The spelling of 2957491669 in words is "two billion, nine hundred fifty-seven million, four hundred ninety-one thousand, six hundred sixty-nine".