5213891956 has 48 divisors (see below), whose sum is σ = 11239561984. Its totient is φ = 2060868096.

The previous prime is 5213891951. The next prime is 5213891983. The reversal of 5213891956 is 6591983125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5213891951) 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, 468796 + ... + 479788.

Almost surely, 2^5213891956 is an apocalyptic number.

It is an amenable number.

5213891956 is an abundant number, since it is smaller than the sum of its proper divisors (6025670028).

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

5213891956 is a wasteful number, since it uses less digits than its factorization.

5213891956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12320 (or 12318 counting only the distinct ones).

The product of its digits is 583200, while the sum is 49.

The square root of 5213891956 is about 72207.2846463568. The cubic root of 5213891956 is about 1734.0196280195.

The spelling of 5213891956 in words is "five billion, two hundred thirteen million, eight hundred ninety-one thousand, nine hundred fifty-six".