53140426634 has 4 divisors (see below), whose sum is σ = 79710639954. Its totient is φ = 26570213316.

The previous prime is 53140426589. The next prime is 53140426637. The reversal of 53140426634 is 43662404135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 43429309609 + 9711117025 = 208397^2 + 98545^2 .

It is not an unprimeable number, because it can be changed into a prime (53140426637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13285106657 + ... + 13285106660.

Almost surely, 2^53140426634 is an apocalyptic number.

53140426634 is a deficient number, since it is larger than the sum of its proper divisors (26570213320).

53140426634 is a wasteful number, since it uses less digits than its factorization.

53140426634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26570213319.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 53140426634 in words is "fifty-three billion, one hundred forty million, four hundred twenty-six thousand, six hundred thirty-four".