61240741619 has 16 divisors (see below), whose sum is σ = 64181040000. Its totient is φ = 58356305280.

The previous prime is 61240741531. The next prime is 61240741699. The reversal of 61240741619 is 91614704216.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61240741619 is a prime.

It is a super-2 number, since 2×61240741619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61240741699) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8108657 + ... + 8116205.

It is an arithmetic number, because the mean of its divisors is an integer number (4011315000).

Almost surely, 2^61240741619 is an apocalyptic number.

61240741619 is a deficient number, since it is larger than the sum of its proper divisors (2940298381).

61240741619 is a wasteful number, since it uses less digits than its factorization.

61240741619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11198.

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 61240741619 in words is "sixty-one billion, two hundred forty million, seven hundred forty-one thousand, six hundred nineteen".