61403621461153 has 64 divisors (see below), whose sum is σ = 70300061568000. Its totient is φ = 53270144169984.

The previous prime is 61403621461139. The next prime is 61403621461177. The reversal of 61403621461153 is 35116412630416.

It is not a de Polignac number, because 61403621461153 - 2⁵ = 61403621461121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61403621441153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4197956826 + ... + 4197971452.

It is an arithmetic number, because the mean of its divisors is an integer number (1098438462000).

Almost surely, 2^{61403621461153} is an apocalyptic number.

It is an amenable number.

61403621461153 is a deficient number, since it is larger than the sum of its proper divisors (8896440106847).

61403621461153 is a wasteful number, since it uses less digits than its factorization.

61403621461153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15854.

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 61403621461153 in words is "sixty-one trillion, four hundred three billion, six hundred twenty-one million, four hundred sixty-one thousand, one hundred fifty-three".