2813196186920 has 48 divisors (see below), whose sum is σ = 7363110433140. Its totient is φ = 964524406272.

The previous prime is 2813196186767. The next prime is 2813196186923. The reversal of 2813196186920 is 296816913182.

It can be written as a sum of positive squares in 2 ways, for example, as 2698154471236 + 115041715684 = 1642606^2 + 339178^2 .

It is a super-2 number, since 2×2813196186920² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (2813196186923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 717650129 + ... + 717654048.

Almost surely, 2^{2813196186920} is an apocalyptic number.

2813196186920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2813196186920 is an abundant number, since it is smaller than the sum of its proper divisors (4549914246220).

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

2813196186920 is a wasteful number, since it uses less digits than its factorization.

2813196186920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1435304202 (or 1435304191 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 56.

The spelling of 2813196186920 in words is "two trillion, eight hundred thirteen billion, one hundred ninety-six million, one hundred eighty-six thousand, nine hundred twenty".