1001390961604 has 12 divisors (see below), whose sum is σ = 1911746381328. Its totient is φ = 455177709800.

The previous prime is 1001390961601. The next prime is 1001390961661. The reversal of 1001390961604 is 4061690931001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1001390961601) 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, 11379442702 + ... + 11379442789.

It is an arithmetic number, because the mean of its divisors is an integer number (159312198444).

Almost surely, 2^{1001390961604} is an apocalyptic number.

It is an amenable number.

1001390961604 is a deficient number, since it is larger than the sum of its proper divisors (910355419724).

1001390961604 is a wasteful number, since it uses less digits than its factorization.

1001390961604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22758885506 (or 22758885504 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 1001390961604 in words is "one trillion, one billion, three hundred ninety million, nine hundred sixty-one thousand, six hundred four".