7481661004004 has 36 divisors (see below), whose sum is σ = 14391761149584. Its totient is φ = 3400664190000.

The previous prime is 7481661004001. The next prime is 7481661004049. The reversal of 7481661004004 is 4004001661847.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7481661004001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19973519 + ... + 20344649.

It is an arithmetic number, because the mean of its divisors is an integer number (399771143044).

Almost surely, 2^{7481661004004} is an apocalyptic number.

It is an amenable number.

7481661004004 is a deficient number, since it is larger than the sum of its proper divisors (6910100145580).

7481661004004 is a wasteful number, since it uses less digits than its factorization.

7481661004004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412808 (or 412795 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The spelling of 7481661004004 in words is "seven trillion, four hundred eighty-one billion, six hundred sixty-one million, four thousand, four".