3756778634 has 16 divisors (see below), whose sum is σ = 6441100800. Its totient is φ = 1609820784.

The previous prime is 3756778603. The next prime is 3756778681. The reversal of 3756778634 is 4368776573.

It is a super-2 number, since 2×3756778634² = 28226771409757811912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3756778634.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117932 + ... + 146360.

It is an arithmetic number, because the mean of its divisors is an integer number (402568800).

Almost surely, 2^3756778634 is an apocalyptic number.

3756778634 is a deficient number, since it is larger than the sum of its proper divisors (2684322166).

3756778634 is a wasteful number, since it uses less digits than its factorization.

3756778634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37877.

The product of its digits is 17781120, while the sum is 56.

The square root of 3756778634 is about 61292.5658950578. The cubic root of 3756778634 is about 1554.5518135705.

The spelling of 3756778634 in words is "three billion, seven hundred fifty-six million, seven hundred seventy-eight thousand, six hundred thirty-four".