61244244801400 has 96 divisors (see below), whose sum is σ = 143875457787600. Its totient is φ = 24242874368000.

The previous prime is 61244244801391. The next prime is 61244244801469. The reversal of 61244244801400 is 410844244216.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39209784 + ... + 40741816.

Almost surely, 2^{61244244801400} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61244244801400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71937728893800).

61244244801400 is an abundant number, since it is smaller than the sum of its proper divisors (82631212986200).

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

61244244801400 is a wasteful number, since it uses less digits than its factorization.

61244244801400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534129 (or 1534120 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 40.

The spelling of 61244244801400 in words is "sixty-one trillion, two hundred forty-four billion, two hundred forty-four million, eight hundred one thousand, four hundred".