76253810533381 has 4 divisors (see below), whose sum is σ = 82119488266732. Its totient is φ = 70388132800032.

The previous prime is 76253810533379. The next prime is 76253810533393. The reversal of 76253810533381 is 18333501835267.

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

It can be written as a sum of positive squares in 2 ways, for example, as 33359288062500 + 42894522470881 = 5775750^2 + 6549391^2 .

It is a cyclic number.

It is not a de Polignac number, because 76253810533381 - 2¹ = 76253810533379 is a prime.

It is a super-2 number, since 2×76253810533381² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76253810533331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2932838866656 + ... + 2932838866681.

It is an arithmetic number, because the mean of its divisors is an integer number (20529872066683).

Almost surely, 2^{76253810533381} is an apocalyptic number.

It is an amenable number.

76253810533381 is a deficient number, since it is larger than the sum of its proper divisors (5865677733351).

76253810533381 is a wasteful number, since it uses less digits than its factorization.

76253810533381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865677733350.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 76253810533381 in words is "seventy-six trillion, two hundred fifty-three billion, eight hundred ten million, five hundred thirty-three thousand, three hundred eighty-one".