7956706780 has 48 divisors (see below), whose sum is σ = 18322635744. Its totient is φ = 2878341120.

The previous prime is 7956706757. The next prime is 7956706787. The reversal of 7956706780 is 876076597.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7956706787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51237 + ... + 136156.

It is an arithmetic number, because the mean of its divisors is an integer number (381721578).

Almost surely, 2^7956706780 is an apocalyptic number.

It is an amenable number.

7956706780 is an abundant number, since it is smaller than the sum of its proper divisors (10365928964).

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

7956706780 is a wasteful number, since it uses less digits than its factorization.

7956706780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187606 (or 187604 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 55.

The square root of 7956706780 is about 89200.3743265688. The cubic root of 7956706780 is about 1996.3857040335.

The spelling of 7956706780 in words is "seven billion, nine hundred fifty-six million, seven hundred six thousand, seven hundred eighty".