5908978981 has 4 divisors (see below), whose sum is σ = 5914667200. Its totient is φ = 5903290764.

The previous prime is 5908978963. The next prime is 5908978993. The reversal of 5908978981 is 1898798095.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5908978981 is a prime.

It is a super-2 number, since 2×5908978981² = 69832065195799596722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5908978381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2842551 + ... + 2844628.

It is an arithmetic number, because the mean of its divisors is an integer number (1478666800).

Almost surely, 2^5908978981 is an apocalyptic number.

It is an amenable number.

5908978981 is a deficient number, since it is larger than the sum of its proper divisors (5688219).

5908978981 is a wasteful number, since it uses less digits than its factorization.

5908978981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5688218.

The product of its (nonzero) digits is 13063680, while the sum is 64.

The square root of 5908978981 is about 76869.8834459894. The cubic root of 5908978981 is about 1807.8850566374.

The spelling of 5908978981 in words is "five billion, nine hundred eight million, nine hundred seventy-eight thousand, nine hundred eighty-one".