61510948473 has 16 divisors (see below), whose sum is σ = 88327870400. Its totient is φ = 37850981184.

The previous prime is 61510948469. The next prime is 61510948489. The reversal of 61510948473 is 37484901516.

It is not a de Polignac number, because 61510948473 - 2² = 61510948469 is a prime.

It is a super-2 number, since 2×61510948473² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61510948493) 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 15 ways as a sum of consecutive naturals, for example, 1431303 + ... + 1473651.

It is an arithmetic number, because the mean of its divisors is an integer number (5520491900).

Almost surely, 2^61510948473 is an apocalyptic number.

It is an amenable number.

61510948473 is a deficient number, since it is larger than the sum of its proper divisors (26816921927).

61510948473 is a wasteful number, since it uses less digits than its factorization.

61510948473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79608.

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 61510948473 in words is "sixty-one billion, five hundred ten million, nine hundred forty-eight thousand, four hundred seventy-three".