7977352036 has 6 divisors (see below), whose sum is σ = 13960366070. Its totient is φ = 3988676016.

The previous prime is 7977352007. The next prime is 7977352057. The reversal of 7977352036 is 6302537797.

It can be written as a sum of positive squares in only one way, i.e., 4699102500 + 3278249536 = 68550^2 + 57256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997169001 + ... + 997169008.

Almost surely, 2^7977352036 is an apocalyptic number.

It is an amenable number.

7977352036 is a deficient number, since it is larger than the sum of its proper divisors (5983014034).

7977352036 is a wasteful number, since it uses less digits than its factorization.

7977352036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994338013 (or 1994338011 counting only the distinct ones).

The product of its (nonzero) digits is 1666980, while the sum is 49.

The square root of 7977352036 is about 89316.0234000596. The cubic root of 7977352036 is about 1998.1108858524.

The spelling of 7977352036 in words is "seven billion, nine hundred seventy-seven million, three hundred fifty-two thousand, thirty-six".