61417257477748 has 48 divisors (see below), whose sum is σ = 110309388235200. Its totient is φ = 29904593241600.

The previous prime is 61417257477713. The next prime is 61417257477767. The reversal of 61417257477748 is 84777475271416.

It is a congruent number.

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, 485022963 + ... + 485149573.

It is an arithmetic number, because the mean of its divisors is an integer number (2298112254900).

Almost surely, 2^{61417257477748} is an apocalyptic number.

It is an amenable number.

61417257477748 is a deficient number, since it is larger than the sum of its proper divisors (48892130757452).

61417257477748 is a wasteful number, since it uses less digits than its factorization.

61417257477748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135088 (or 135086 counting only the distinct ones).

The product of its digits is 516311040, while the sum is 70.

The spelling of 61417257477748 in words is "sixty-one trillion, four hundred seventeen billion, two hundred fifty-seven million, four hundred seventy-seven thousand, seven hundred forty-eight".