2315551836 has 48 divisors (see below), whose sum is σ = 5822537504. Its totient is φ = 711991296.

The previous prime is 2315551811. The next prime is 2315551837. The reversal of 2315551836 is 6381555132.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 2315551794 and 2315551803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315551837) 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, 273036 + ... + 281388.

Almost surely, 2^2315551836 is an apocalyptic number.

2315551836 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2315551836 is an abundant number, since it is smaller than the sum of its proper divisors (3506985668).

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

2315551836 is a wasteful number, since it uses less digits than its factorization.

2315551836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150 (or 10148 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 2315551836 is about 48120.1811717288. The cubic root of 2315551836 is about 1322.9745888606.

The spelling of 2315551836 in words is "two billion, three hundred fifteen million, five hundred fifty-one thousand, eight hundred thirty-six".