53681399142 has 48 divisors (see below), whose sum is σ = 126179025840. Its totient is φ = 15179415552.

The previous prime is 53681399129. The next prime is 53681399153. The reversal of 53681399142 is 24199318635.

It is a super-2 number, since 2×53681399142² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 912667 + ... + 969702.

It is an arithmetic number, because the mean of its divisors is an integer number (2628729705).

Almost surely, 2^53681399142 is an apocalyptic number.

53681399142 is an abundant number, since it is smaller than the sum of its proper divisors (72497626698).

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

53681399142 is a wasteful number, since it uses less digits than its factorization.

53681399142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882485 (or 1882478 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The spelling of 53681399142 in words is "fifty-three billion, six hundred eighty-one million, three hundred ninety-nine thousand, one hundred forty-two".