61405146081741 has 32 divisors (see below), whose sum is σ = 108080562705408. Its totient is φ = 30022378525440.

The previous prime is 61405146081701. The next prime is 61405146081743. The reversal of 61405146081741 is 14718064150416.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-61405146081741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61405146081743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7818323815 + ... + 7818331668.

It is an arithmetic number, because the mean of its divisors is an integer number (3377517584544).

Almost surely, 2^{61405146081741} is an apocalyptic number.

It is an amenable number.

61405146081741 is a deficient number, since it is larger than the sum of its proper divisors (46675416623667).

61405146081741 is a wasteful number, since it uses less digits than its factorization.

61405146081741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15636655521.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 61405146081741 in words is "sixty-one trillion, four hundred five billion, one hundred forty-six million, eighty-one thousand, seven hundred forty-one".