61403621460104 has 64 divisors (see below), whose sum is σ = 148171286016000. Its totient is φ = 23151763425600.

The previous prime is 61403621460091. The next prime is 61403621460131. The reversal of 61403621460104 is 40106412630416.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1607742254 + ... + 1607780445.

It is an arithmetic number, because the mean of its divisors is an integer number (2315176344000).

Almost surely, 2^{61403621460104} is an apocalyptic number.

It is an amenable number.

61403621460104 is an abundant number, since it is smaller than the sum of its proper divisors (86767664555896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61403621460104 is a wasteful number, since it uses less digits than its factorization.

61403621460104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215522754 (or 3215522750 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 61403621460104 in words is "sixty-one trillion, four hundred three billion, six hundred twenty-one million, four hundred sixty thousand, one hundred four".