7890460780 has 24 divisors (see below), whose sum is σ = 16589204352. Its totient is φ = 3152520192.

The previous prime is 7890460769. The next prime is 7890460793. The reversal of 7890460780 is 870640987.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211317 + ... + 245836.

It is an arithmetic number, because the mean of its divisors is an integer number (691216848).

Almost surely, 2^7890460780 is an apocalyptic number.

It is an amenable number.

7890460780 is an abundant number, since it is smaller than the sum of its proper divisors (8698743572).

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

7890460780 is a wasteful number, since it uses less digits than its factorization.

7890460780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458025 (or 458023 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 7890460780 is about 88828.2656590795. The cubic root of 7890460780 is about 1990.8297491798.

The spelling of 7890460780 in words is "seven billion, eight hundred ninety million, four hundred sixty thousand, seven hundred eighty".