65761394530 has 32 divisors (see below), whose sum is σ = 127487881584. Its totient is φ = 24278854656.

The previous prime is 65761394521. The next prime is 65761394539. The reversal of 65761394530 is 3549316756.

It is an interprime number because it is at equal distance from previous prime (65761394521) and next prime (65761394539).

It can be written as a sum of positive squares in 8 ways, for example, as 25973512569 + 39787881961 = 161163^2 + 199469^2 .

It is a super-2 number, since 2×65761394530² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65761394539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2092614 + ... + 2123806.

Almost surely, 2^65761394530 is an apocalyptic number.

65761394530 is a deficient number, since it is larger than the sum of its proper divisors (61726487054).

65761394530 is a wasteful number, since it uses less digits than its factorization.

65761394530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47430.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 65761394530 in words is "sixty-five billion, seven hundred sixty-one million, three hundred ninety-four thousand, five hundred thirty".