2126694542 has 16 divisors (see below), whose sum is σ = 3683349600. Its totient is φ = 902043648.

The previous prime is 2126694541. The next prime is 2126694569. The reversal of 2126694542 is 2454966212.

It is a self number, because there is not a number n which added to its sum of digits gives 2126694542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126694541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 781667 + ... + 784382.

It is an arithmetic number, because the mean of its divisors is an integer number (230209350).

Almost surely, 2^2126694542 is an apocalyptic number.

2126694542 is a deficient number, since it is larger than the sum of its proper divisors (1556655058).

2126694542 is a wasteful number, since it uses less digits than its factorization.

2126694542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566155.

The product of its digits is 207360, while the sum is 41.

The square root of 2126694542 is about 46116.0985123417. The cubic root of 2126694542 is about 1285.9824413673.

The spelling of 2126694542 in words is "two billion, one hundred twenty-six million, six hundred ninety-four thousand, five hundred forty-two".