2351672856 has 144 divisors (see below), whose sum is σ = 6946299360. Its totient is φ = 718398720.

The previous prime is 2351672819. The next prime is 2351672887. The reversal of 2351672856 is 6582761532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1909761 + ... + 1910991.

It is an arithmetic number, because the mean of its divisors is an integer number (48238190).

Almost surely, 2^2351672856 is an apocalyptic number.

2351672856 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2351672856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3473149680).

2351672856 is an abundant number, since it is smaller than the sum of its proper divisors (4594626504).

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

2351672856 is a wasteful number, since it uses less digits than its factorization.

2351672856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1406 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 2351672856 is about 48494.0496968443. The cubic root of 2351672856 is about 1329.8182908895.

The spelling of 2351672856 in words is "two billion, three hundred fifty-one million, six hundred seventy-two thousand, eight hundred fifty-six".