7978430750 has 32 divisors (see below), whose sum is σ = 14941390464. Its totient is φ = 3190140000.

The previous prime is 7978430749. The next prime is 7978430773. The reversal of 7978430750 is 570348797.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920939 + ... + 929561.

It is an arithmetic number, because the mean of its divisors is an integer number (466918452).

Almost surely, 2^7978430750 is an apocalyptic number.

7978430750 is a deficient number, since it is larger than the sum of its proper divisors (6962959714).

7978430750 is a wasteful number, since it uses less digits than its factorization.

7978430750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12341 (or 12331 counting only the distinct ones).

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 7978430750 is about 89322.0619444043. The cubic root of 7978430750 is about 1998.2009446852.

The spelling of 7978430750 in words is "seven billion, nine hundred seventy-eight million, four hundred thirty thousand, seven hundred fifty".