61337558934 has 96 divisors (see below), whose sum is σ = 146542556160. Its totient is φ = 19162023552.

The previous prime is 61337558929. The next prime is 61337558939. The reversal of 61337558934 is 43985573316.

It is an interprime number because it is at equal distance from previous prime (61337558929) and next prime (61337558939).

It is a super-2 number, since 2×61337558934² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61337558939) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1959087 + ... + 1990149.

It is an arithmetic number, because the mean of its divisors is an integer number (1526484960).

Almost surely, 2^61337558934 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61337558934, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73271278080).

61337558934 is an abundant number, since it is smaller than the sum of its proper divisors (85204997226).

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

61337558934 is a wasteful number, since it uses less digits than its factorization.

61337558934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31336 (or 31324 counting only the distinct ones).

The product of its digits is 8164800, while the sum is 54.

The spelling of 61337558934 in words is "sixty-one billion, three hundred thirty-seven million, five hundred fifty-eight thousand, nine hundred thirty-four".