61240841345456 has 40 divisors (see below), whose sum is σ = 118704098641920. Its totient is φ = 30607526811456.

The previous prime is 61240841345449. The next prime is 61240841345491. The reversal of 61240841345456 is 65454314804216.

It is a junction number, because it is equal to n+sod(n) for n = 61240841345398 and 61240841345407.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588877321 + ... + 1588915863.

It is an arithmetic number, because the mean of its divisors is an integer number (2967602466048).

Almost surely, 2^{61240841345456} is an apocalyptic number.

It is an amenable number.

61240841345456 is a deficient number, since it is larger than the sum of its proper divisors (57463257296464).

61240841345456 is a wasteful number, since it uses less digits than its factorization.

61240841345456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77793 (or 77787 counting only the distinct ones).

The product of its (nonzero) digits is 11059200, while the sum is 53.

The spelling of 61240841345456 in words is "sixty-one trillion, two hundred forty billion, eight hundred forty-one million, three hundred forty-five thousand, four hundred fifty-six".