5311091780 has 24 divisors (see below), whose sum is σ = 11185449408. Its totient is φ = 2118311648.

The previous prime is 5311091719. The next prime is 5311091789. The reversal of 5311091780 is 871901135.

It is a self number, because there is not a number n which added to its sum of digits gives 5311091780.

It is not an unprimeable number, because it can be changed into a prime (5311091789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375704 + ... + 389583.

It is an arithmetic number, because the mean of its divisors is an integer number (466060392).

Almost surely, 2^5311091780 is an apocalyptic number.

It is an amenable number.

5311091780 is an abundant number, since it is smaller than the sum of its proper divisors (5874357628).

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

5311091780 is a wasteful number, since it uses less digits than its factorization.

5311091780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765643 (or 765641 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 5311091780 is about 72877.2377357979. The cubic root of 5311091780 is about 1744.7288221554.

The spelling of 5311091780 in words is "five billion, three hundred eleven million, ninety-one thousand, seven hundred eighty".