7397764690 has 16 divisors (see below), whose sum is σ = 13317055128. Its totient is φ = 2958866176.

The previous prime is 7397764687. The next prime is 7397764721. The reversal of 7397764690 is 964677937.

It can be written as a sum of positive squares in 4 ways, for example, as 4257171009 + 3140593681 = 65247^2 + 56041^2 .

It is a super-2 number, since 2×7397764690² (a number of 21 digits) contains 22 as substring.

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, 152664 + ... + 195196.

Almost surely, 2^7397764690 is an apocalyptic number.

7397764690 is a deficient number, since it is larger than the sum of its proper divisors (5919290438).

7397764690 is a wasteful number, since it uses less digits than its factorization.

7397764690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59933.

The product of its (nonzero) digits is 12002256, while the sum is 58.

The square root of 7397764690 is about 86010.2592136543. The cubic root of 7397764690 is about 1948.4989272012.

The spelling of 7397764690 in words is "seven billion, three hundred ninety-seven million, seven hundred sixty-four thousand, six hundred ninety".