61263623831 has 8 divisors (see below), whose sum is σ = 61472669040. Its totient is φ = 61054678528.

The previous prime is 61263623801. The next prime is 61263623891. The reversal of 61263623831 is 13832636216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61263623831 - 2²² = 61259429527 is a prime.

It is a super-2 number, since 2×61263623831² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61263623801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327415 + ... + 1372791.

It is an arithmetic number, because the mean of its divisors is an integer number (7684083630).

Almost surely, 2^61263623831 is an apocalyptic number.

61263623831 is a deficient number, since it is larger than the sum of its proper divisors (209045209).

61263623831 is a wasteful number, since it uses less digits than its factorization.

61263623831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49953.

The product of its digits is 186624, while the sum is 41.

The spelling of 61263623831 in words is "sixty-one billion, two hundred sixty-three million, six hundred twenty-three thousand, eight hundred thirty-one".