42015645334 has 24 divisors (see below), whose sum is σ = 70088809680. Its totient is φ = 18867727008.

The previous prime is 42015645283. The next prime is 42015645337. The reversal of 42015645334 is 43354651024.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 42015645293 and 42015645302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42015645337) 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 11 ways as a sum of consecutive naturals, for example, 1667314 + ... + 1692325.

It is an arithmetic number, because the mean of its divisors is an integer number (2920367070).

Almost surely, 2^42015645334 is an apocalyptic number.

42015645334 is a deficient number, since it is larger than the sum of its proper divisors (28073164346).

42015645334 is a wasteful number, since it uses less digits than its factorization.

42015645334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3359704 (or 3359691 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 42015645334 in words is "forty-two billion, fifteen million, six hundred forty-five thousand, three hundred thirty-four".