2356778004 has 48 divisors (see below), whose sum is σ = 6314574336. Its totient is φ = 670168800.

The previous prime is 2356777987. The next prime is 2356778009. The reversal of 2356778004 is 4008776532.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2356778009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48762 + ... + 84209.

It is an arithmetic number, because the mean of its divisors is an integer number (131553632).

Almost surely, 2^2356778004 is an apocalyptic number.

It is an amenable number.

2356778004 is an abundant number, since it is smaller than the sum of its proper divisors (3957796332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2356778004 is a wasteful number, since it uses less digits than its factorization.

2356778004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133196 (or 133194 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 2356778004 is about 48546.6580106190. The cubic root of 2356778004 is about 1330.7798776586.

The spelling of 2356778004 in words is "two billion, three hundred fifty-six million, seven hundred seventy-eight thousand, four".