61346033731 has 4 divisors (see below), whose sum is σ = 61346672464. Its totient is φ = 61345395000.

The previous prime is 61346033729. The next prime is 61346033737. The reversal of 61346033731 is 13733064316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 61346033731 - 2¹ = 61346033729 is a prime.

It is a super-2 number, since 2×61346033731² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61346033737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142740 + ... + 378241.

It is an arithmetic number, because the mean of its divisors is an integer number (15336668116).

Almost surely, 2^61346033731 is an apocalyptic number.

61346033731 is a deficient number, since it is larger than the sum of its proper divisors (638733).

61346033731 is a wasteful number, since it uses less digits than its factorization.

61346033731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638732.

The product of its (nonzero) digits is 81648, while the sum is 37.

The spelling of 61346033731 in words is "sixty-one billion, three hundred forty-six million, thirty-three thousand, seven hundred thirty-one".