42061894434534 has 32 divisors (see below), whose sum is σ = 90804075604704. Its totient is φ = 12912231928320.

The previous prime is 42061894434481. The next prime is 42061894434551. The reversal of 42061894434534 is 43543449816024.

It is a super-2 number, since 2×42061894434534² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622662597 + ... + 622730144.

It is an arithmetic number, because the mean of its divisors is an integer number (2837627362647).

Almost surely, 2^{42061894434534} is an apocalyptic number.

42061894434534 is an abundant number, since it is smaller than the sum of its proper divisors (48742181170170).

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

42061894434534 is a wasteful number, since it uses less digits than its factorization.

42061894434534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1245393192.

The product of its (nonzero) digits is 39813120, while the sum is 57.

The spelling of 42061894434534 in words is "forty-two trillion, sixty-one billion, eight hundred ninety-four million, four hundred thirty-four thousand, five hundred thirty-four".