61450028392 has 16 divisors (see below), whose sum is σ = 115862486400. Its totient is φ = 30553365360.

The previous prime is 61450028389. The next prime is 61450028429. The reversal of 61450028392 is 29382005416.

It is a super-2 number, since 2×61450028392² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21454584 + ... + 21457447.

It is an arithmetic number, because the mean of its divisors is an integer number (7241405400).

Almost surely, 2^61450028392 is an apocalyptic number.

It is an amenable number.

61450028392 is a deficient number, since it is larger than the sum of its proper divisors (54412458008).

61450028392 is a wasteful number, since it uses less digits than its factorization.

61450028392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42912216 (or 42912212 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 61450028392 in words is "sixty-one billion, four hundred fifty million, twenty-eight thousand, three hundred ninety-two".