7749653956 has 24 divisors (see below), whose sum is σ = 15573468960. Its totient is φ = 3337171200.

The previous prime is 7749653897. The next prime is 7749653981. The reversal of 7749653956 is 6593569477.

It is a junction number, because it is equal to n+sod(n) for n = 7749653894 and 7749653903.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4634125 + ... + 4635796.

It is an arithmetic number, because the mean of its divisors is an integer number (648894540).

Almost surely, 2^7749653956 is an apocalyptic number.

7749653956 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

7749653956 is an abundant number, since it is smaller than the sum of its proper divisors (7823815004).

7749653956 is a wasteful number, since it uses less digits than its factorization.

7749653956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9269955 (or 9269953 counting only the distinct ones).

The product of its digits is 42865200, while the sum is 61.

The square root of 7749653956 is about 88032.1188885057. The cubic root of 7749653956 is about 1978.9163505385.

The spelling of 7749653956 in words is "seven billion, seven hundred forty-nine million, six hundred fifty-three thousand, nine hundred fifty-six".