61283721376 has 48 divisors (see below), whose sum is σ = 121783229568. Its totient is φ = 30355948800.

The previous prime is 61283721353. The next prime is 61283721427. The reversal of 61283721376 is 67312738216.

It is a happy number.

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, 1503181 + ... + 1543411.

It is an arithmetic number, because the mean of its divisors is an integer number (2537150616).

Almost surely, 2^61283721376 is an apocalyptic number.

It is an amenable number.

61283721376 is a deficient number, since it is larger than the sum of its proper divisors (60499508192).

61283721376 is a wasteful number, since it uses less digits than its factorization.

61283721376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40685 (or 40677 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The spelling of 61283721376 in words is "sixty-one billion, two hundred eighty-three million, seven hundred twenty-one thousand, three hundred seventy-six".