7770103728 has 20 divisors (see below), whose sum is σ = 20072768088. Its totient is φ = 2590034560.

The previous prime is 7770103709. The next prime is 7770103763. The reversal of 7770103728 is 8273010777.

It is a self number, because there is not a number n which added to its sum of digits gives 7770103728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80938533 + ... + 80938628.

Almost surely, 2^7770103728 is an apocalyptic number.

It is an amenable number.

7770103728 is an abundant number, since it is smaller than the sum of its proper divisors (12302664360).

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

7770103728 is a wasteful number, since it uses less digits than its factorization.

7770103728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161877172 (or 161877166 counting only the distinct ones).

The product of its (nonzero) digits is 115248, while the sum is 42.

The square root of 7770103728 is about 88148.1918589372. The cubic root of 7770103728 is about 1980.6554752585.

The spelling of 7770103728 in words is "seven billion, seven hundred seventy million, one hundred three thousand, seven hundred twenty-eight".