2478660757 has 16 divisors (see below), whose sum is σ = 2605195008. Its totient is φ = 2353760640.

The previous prime is 2478660733. The next prime is 2478660773. The reversal of 2478660757 is 7570668742.

It is a cyclic number.

It is not a de Polignac number, because 2478660757 - 2¹¹ = 2478658709 is a prime.

It is a super-2 number, since 2×2478660757² = 12287518296583626098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478660557) 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, 3381163 + ... + 3381895.

It is an arithmetic number, because the mean of its divisors is an integer number (162824688).

Almost surely, 2^2478660757 is an apocalyptic number.

It is an amenable number.

2478660757 is a deficient number, since it is larger than the sum of its proper divisors (126534251).

2478660757 is a wasteful number, since it uses less digits than its factorization.

2478660757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The square root of 2478660757 is about 49786.1502528565. The cubic root of 2478660757 is about 1353.3361943460.

The spelling of 2478660757 in words is "two billion, four hundred seventy-eight million, six hundred sixty thousand, seven hundred fifty-seven".