9440379801021 has 16 divisors (see below), whose sum is σ = 13635626728640. Its totient is φ = 5809464488880.

The previous prime is 9440379801007. The next prime is 9440379801023. The reversal of 9440379801021 is 1201089730449.

It is not a de Polignac number, because 9440379801021 - 2¹⁷ = 9440379669949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9440379801023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716150275 + ... + 716163456.

It is an arithmetic number, because the mean of its divisors is an integer number (852226670540).

Almost surely, 2^{9440379801021} is an apocalyptic number.

It is an amenable number.

9440379801021 is a deficient number, since it is larger than the sum of its proper divisors (4195246927619).

9440379801021 is a wasteful number, since it uses less digits than its factorization.

9440379801021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1432313773 (or 1432313747 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 9440379801021 in words is "nine trillion, four hundred forty billion, three hundred seventy-nine million, eight hundred one thousand, twenty-one".