61464375700 has 144 divisors (see below), whose sum is σ = 164288234880. Its totient is φ = 19436935680.

The previous prime is 61464375697. The next prime is 61464375803. The reversal of 61464375700 is 757346416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18007194 + ... + 18010606.

It is an arithmetic number, because the mean of its divisors is an integer number (1140890520).

Almost surely, 2^61464375700 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 61464375700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82144117440).

61464375700 is an abundant number, since it is smaller than the sum of its proper divisors (102823859180).

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

61464375700 is a wasteful number, since it uses less digits than its factorization.

61464375700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5426 (or 5419 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 61464375700 in words is "sixty-one billion, four hundred sixty-four million, three hundred seventy-five thousand, seven hundred".