7401631347648 has 84 divisors (see below), whose sum is σ = 21216069386928. Its totient is φ = 2467137239040.

The previous prime is 7401631347631. The next prime is 7401631347653. The reversal of 7401631347648 is 8467431361047.

It is a happy number.

7401631347648 is a `hidden beast` number, since 7 + 4 + 0 + 163 + 1 + 3 + 476 + 4 + 8 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 7401631347594 and 7401631347603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21347965 + ... + 21691907.

Almost surely, 2^{7401631347648} is an apocalyptic number.

It is an amenable number.

7401631347648 is an abundant number, since it is smaller than the sum of its proper divisors (13814438039280).

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

7401631347648 is a wasteful number, since it uses less digits than its factorization.

7401631347648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381322 (or 381309 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 54.

The spelling of 7401631347648 in words is "seven trillion, four hundred one billion, six hundred thirty-one million, three hundred forty-seven thousand, six hundred forty-eight".