61123704400 has 120 divisors (see below), whose sum is σ = 165367772928. Its totient is φ = 21509760000.

The previous prime is 61123704331. The next prime is 61123704443. The reversal of 61123704400 is 440732116.

It is a super-2 number, since 2×61123704400² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 87661 + ... + 360460.

Almost surely, 2^61123704400 is an apocalyptic number.

It is an amenable number.

61123704400 is an abundant number, since it is smaller than the sum of its proper divisors (104244068528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61123704400 is a wasteful number, since it uses less digits than its factorization.

61123704400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448181 (or 448170 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The spelling of 61123704400 in words is "sixty-one billion, one hundred twenty-three million, seven hundred four thousand, four hundred".