61037987562 has 56 divisors (see below), whose sum is σ = 137332389600. Its totient is φ = 20337146280.

The previous prime is 61037987561. The next prime is 61037987599. The reversal of 61037987562 is 26578973016.

61037987562 is a `hidden beast` number, since 6 + 1 + 0 + 3 + 79 + 8 + 7 + 562 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 61037987499 and 61037987508.

It is not an unprimeable number, because it can be changed into a prime (61037987561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3927387 + ... + 3942897.

It is an arithmetic number, because the mean of its divisors is an integer number (2452364100).

Almost surely, 2^61037987562 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61037987562, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68666194800).

61037987562 is an abundant number, since it is smaller than the sum of its proper divisors (76294402038).

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

61037987562 is a wasteful number, since it uses less digits than its factorization.

61037987562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18230 (or 18215 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The spelling of 61037987562 in words is "sixty-one billion, thirty-seven million, nine hundred eighty-seven thousand, five hundred sixty-two".