2578766770 has 16 divisors (see below), whose sum is σ = 4643412480. Its totient is φ = 1031143984.

The previous prime is 2578766761. The next prime is 2578766777. The reversal of 2578766770 is 776678752.

It is not an unprimeable number, because it can be changed into a prime (2578766777) 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, 14482 + ... + 73261.

It is an arithmetic number, because the mean of its divisors is an integer number (290213280).

Almost surely, 2^2578766770 is an apocalyptic number.

2578766770 is a deficient number, since it is larger than the sum of its proper divisors (2064645710).

2578766770 is a wasteful number, since it uses less digits than its factorization.

2578766770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90689.

The product of its (nonzero) digits is 6914880, while the sum is 55.

The square root of 2578766770 is about 50781.5593498270. The cubic root of 2578766770 is about 1371.3154059390.

The spelling of 2578766770 in words is "two billion, five hundred seventy-eight million, seven hundred sixty-six thousand, seven hundred seventy".