6373604028781 has 6 divisors (see below), whose sum is σ = 7005696990446. Its totient is φ = 5794185480600.

The previous prime is 6373604028769. The next prime is 6373604028797. The reversal of 6373604028781 is 1878204063736.

It can be written as a sum of positive squares in only one way, i.e., 6293099046025 + 80504982756 = 2508605^2 + 283734^2 .

It is not a de Polignac number, because 6373604028781 - 2⁹ = 6373604028269 is a prime.

It is a super-2 number, since 2×6373604028781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6373604008781) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26337206610 + ... + 26337206851.

Almost surely, 2^{6373604028781} is an apocalyptic number.

It is an amenable number.

6373604028781 is a deficient number, since it is larger than the sum of its proper divisors (632092961665).

6373604028781 is a wasteful number, since it uses less digits than its factorization.

6373604028781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52674413483 (or 52674413472 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 6373604028781 in words is "six trillion, three hundred seventy-three billion, six hundred four million, twenty-eight thousand, seven hundred eighty-one".