61436144532750 has 64 divisors (see below), whose sum is σ = 165140356530240. Its totient is φ = 15122743267200.

The previous prime is 61436144532683. The next prime is 61436144532757. The reversal of 61436144532750 is 5723544163416.

It is a junction number, because it is equal to n+sod(n) for n = 61436144532693 and 61436144532702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61436144532757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3150561765 + ... + 3150581264.

It is an arithmetic number, because the mean of its divisors is an integer number (2580318070785).

Almost surely, 2^{61436144532750} is an apocalyptic number.

61436144532750 is an abundant number, since it is smaller than the sum of its proper divisors (103704211997490).

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

61436144532750 is a wasteful number, since it uses less digits than its factorization.

61436144532750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6301143062 (or 6301143052 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 61436144532750 in words is "sixty-one trillion, four hundred thirty-six billion, one hundred forty-four million, five hundred thirty-two thousand, seven hundred fifty".