7639954965 has 64 divisors (see below), whose sum is σ = 14518586880. Its totient is φ = 3802360320.

The previous prime is 7639954963. The next prime is 7639954979. The reversal of 7639954965 is 5694599367.

It is not a de Polignac number, because 7639954965 - 2¹ = 7639954963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7639954963) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97299 + ... + 157311.

It is an arithmetic number, because the mean of its divisors is an integer number (226852920).

Almost surely, 2^7639954965 is an apocalyptic number.

It is an amenable number.

7639954965 is a deficient number, since it is larger than the sum of its proper divisors (6878631915).

7639954965 is a wasteful number, since it uses less digits than its factorization.

7639954965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60091 (or 60085 counting only the distinct ones).

The product of its digits is 55112400, while the sum is 63.

The square root of 7639954965 is about 87406.8359168778. The cubic root of 7639954965 is about 1969.5345310480.

It can be divided in two parts, 76 and 39954965, that added together give a square (39955041 = 6321²).

The spelling of 7639954965 in words is "seven billion, six hundred thirty-nine million, nine hundred fifty-four thousand, nine hundred sixty-five".