7770000770 has 32 divisors (see below), whose sum is σ = 16064352000. Its totient is φ = 2650608576.

The previous prime is 7770000767. The next prime is 7770000781. The reversal of 7770000770 is 770000777.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 7770000770.

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, 264965 + ... + 292824.

It is an arithmetic number, because the mean of its divisors is an integer number (502011000).

Almost surely, 2^7770000770 is an apocalyptic number.

7770000770 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7770000770 is an abundant number, since it is smaller than the sum of its proper divisors (8294351230).

7770000770 is a wasteful number, since it uses less digits than its factorization.

7770000770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558002.

The product of its (nonzero) digits is 16807, while the sum is 35.

The square root of 7770000770 is about 88147.6078518300. The cubic root of 7770000770 is about 1980.6467269743.

The spelling of 7770000770 in words is "seven billion, seven hundred seventy million, seven hundred seventy", and thus it is an aban number.