5081399892 has 60 divisors (see below), whose sum is σ = 14065197300. Its totient is φ = 1594162944.

The previous prime is 5081399891. The next prime is 5081399893. The reversal of 5081399892 is 2989931805.

It is an interprime number because it is at equal distance from previous prime (5081399891) and next prime (5081399893).

It can be written as a sum of positive squares in 2 ways, for example, as 3059638596 + 2021761296 = 55314^2 + 44964^2 .

It is a super-2 number, since 2×5081399892² = 51641249724835223328, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5081399891) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 455767 + ... + 466782.

It is an arithmetic number, because the mean of its divisors is an integer number (234419955).

Almost surely, 2^5081399892 is an apocalyptic number.

It is an amenable number.

5081399892 is an abundant number, since it is smaller than the sum of its proper divisors (8983797408).

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

5081399892 is a wasteful number, since it uses less digits than its factorization.

5081399892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922582 (or 922571 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 5081399892 is about 71283.9385275533. The cubic root of 5081399892 is about 1719.2054979422.

The spelling of 5081399892 in words is "five billion, eighty-one million, three hundred ninety-nine thousand, eight hundred ninety-two".