42412862691 has 48 divisors (see below), whose sum is σ = 65000482560. Its totient is φ = 26611200000.

The previous prime is 42412862677. The next prime is 42412862699. The reversal of 42412862691 is 19626821424.

It is a happy number.

42412862691 is a `hidden beast` number, since 4 + 2 + 4 + 12 + 8 + 626 + 9 + 1 = 666.

It is not a de Polignac number, because 42412862691 - 2⁵ = 42412862659 is a prime.

It is a super-2 number, since 2×42412862691² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42412862699) 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, 1500691 + ... + 1528691.

It is an arithmetic number, because the mean of its divisors is an integer number (1354176720).

Almost surely, 2^42412862691 is an apocalyptic number.

42412862691 is a deficient number, since it is larger than the sum of its proper divisors (22587619869).

42412862691 is a wasteful number, since it uses less digits than its factorization.

42412862691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28188 (or 28185 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The spelling of 42412862691 in words is "forty-two billion, four hundred twelve million, eight hundred sixty-two thousand, six hundred ninety-one".