42737543613 has 6 divisors (see below), whose sum is σ = 61732007454. Its totient is φ = 28491695736.

The previous prime is 42737543593. The next prime is 42737543689. The reversal of 42737543613 is 31634573724.

42737543613 is a `hidden beast` number, since 4 + 27 + 3 + 7 + 5 + 4 + 3 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42732331524 + 5212089 = 206718^2 + 2283^2 .

It is not a de Polignac number, because 42737543613 - 2⁶ = 42737543549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42737543813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2374307970 + ... + 2374307987.

It is an arithmetic number, because the mean of its divisors is an integer number (10288667909).

Almost surely, 2^42737543613 is an apocalyptic number.

It is an amenable number.

42737543613 is a deficient number, since it is larger than the sum of its proper divisors (18994463841).

42737543613 is a wasteful number, since it uses less digits than its factorization.

42737543613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4748615963 (or 4748615960 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 45.

The spelling of 42737543613 in words is "forty-two billion, seven hundred thirty-seven million, five hundred forty-three thousand, six hundred thirteen".