2557077674 has 4 divisors (see below), whose sum is σ = 3835616514. Its totient is φ = 1278538836.

The previous prime is 2557077673. The next prime is 2557077707. The reversal of 2557077674 is 4767707552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2219069449 + 338008225 = 47107^2 + 18385^2 .

It is not an unprimeable number, because it can be changed into a prime (2557077671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639269417 + ... + 639269420.

Almost surely, 2^2557077674 is an apocalyptic number.

2557077674 is a deficient number, since it is larger than the sum of its proper divisors (1278538840).

2557077674 is a wasteful number, since it uses less digits than its factorization.

2557077674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278538839.

The product of its (nonzero) digits is 2881200, while the sum is 50.

The square root of 2557077674 is about 50567.5555470106. Note that the first 4 decimals coincide. The cubic root of 2557077674 is about 1367.4600271507.

The spelling of 2557077674 in words is "two billion, five hundred fifty-seven million, seventy-seven thousand, six hundred seventy-four".