1390639417802 has 16 divisors (see below), whose sum is σ = 2123900281152. Its totient is φ = 682739397120.

The previous prime is 1390639417801. The next prime is 1390639417877. The reversal of 1390639417802 is 2087149360931.

It is a super-2 number, since 2×1390639417802² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1390639417801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16643063 + ... + 16726410.

It is an arithmetic number, because the mean of its divisors is an integer number (132743767572).

Almost surely, 2^{1390639417802} is an apocalyptic number.

1390639417802 is a deficient number, since it is larger than the sum of its proper divisors (733260863350).

1390639417802 is a wasteful number, since it uses less digits than its factorization.

1390639417802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33369853.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The spelling of 1390639417802 in words is "one trillion, three hundred ninety billion, six hundred thirty-nine million, four hundred seventeen thousand, eight hundred two".