61641474334575 has 24 divisors (see below), whose sum is σ = 102922952802576. Its totient is φ = 32549953440000.

The previous prime is 61641474334537. The next prime is 61641474334577. The reversal of 61641474334575 is 57543347414616.

It is not a de Polignac number, because 61641474334575 - 2¹² = 61641474330479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61641474334577) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4068736606 + ... + 4068751755.

It is an arithmetic number, because the mean of its divisors is an integer number (4288456366774).

Almost surely, 2^{61641474334575} is an apocalyptic number.

61641474334575 is a deficient number, since it is larger than the sum of its proper divisors (41281478468001).

61641474334575 is a wasteful number, since it uses less digits than its factorization.

61641474334575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8137488475 (or 8137488470 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 60.

The spelling of 61641474334575 in words is "sixty-one trillion, six hundred forty-one billion, four hundred seventy-four million, three hundred thirty-four thousand, five hundred seventy-five".