16291419534 has 24 divisors (see below), whose sum is σ = 38013312792. Its totient is φ = 5012744400.

The previous prime is 16291419533. The next prime is 16291419559. The reversal of 16291419534 is 43591419261.

16291419534 is a `hidden beast` number, since 1 + 629 + 1 + 4 + 19 + 5 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 16291419534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16291419533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34810492 + ... + 34810959.

It is an arithmetic number, because the mean of its divisors is an integer number (1583888033).

Almost surely, 2^16291419534 is an apocalyptic number.

16291419534 is an abundant number, since it is smaller than the sum of its proper divisors (21721893258).

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

16291419534 is a wasteful number, since it uses less digits than its factorization.

16291419534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69621472 (or 69621469 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 16291419534 in words is "sixteen billion, two hundred ninety-one million, four hundred nineteen thousand, five hundred thirty-four".