42494787537 has 16 divisors (see below), whose sum is σ = 57491159040. Its totient is φ = 27915565392.

The previous prime is 42494787523. The next prime is 42494787541. The reversal of 42494787537 is 73578749424.

It is not a de Polignac number, because 42494787537 - 2¹⁶ = 42494722001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42494787437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59023 + ... + 297444.

It is an arithmetic number, because the mean of its divisors is an integer number (3593197440).

Almost surely, 2^42494787537 is an apocalyptic number.

It is an amenable number.

42494787537 is a deficient number, since it is larger than the sum of its proper divisors (14996371503).

42494787537 is a wasteful number, since it uses less digits than its factorization.

42494787537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357052.

The product of its digits is 47416320, while the sum is 60.

The spelling of 42494787537 in words is "forty-two billion, four hundred ninety-four million, seven hundred eighty-seven thousand, five hundred thirty-seven".