61693303131 has 16 divisors (see below), whose sum is σ = 91418637600. Its totient is φ = 41119350624.

The previous prime is 61693303129. The next prime is 61693303181. The reversal of 61693303131 is 13130339616.

It is a happy number.

61693303131 is a `hidden beast` number, since 6 + 1 + 6 + 9 + 330 + 313 + 1 = 666.

It is not a de Polignac number, because 61693303131 - 2¹ = 61693303129 is a prime.

It is a super-2 number, since 2×61693303131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61693303181) 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, 144576 + ... + 379853.

It is an arithmetic number, because the mean of its divisors is an integer number (5713664850).

Almost surely, 2^61693303131 is an apocalyptic number.

61693303131 is a deficient number, since it is larger than the sum of its proper divisors (29725334469).

61693303131 is a wasteful number, since it uses less digits than its factorization.

61693303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528795 (or 528789 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The spelling of 61693303131 in words is "sixty-one billion, six hundred ninety-three million, three hundred three thousand, one hundred thirty-one".