1391290265164 has 6 divisors (see below), whose sum is σ = 2434757964044. Its totient is φ = 695645132580.

The previous prime is 1391290265159. The next prime is 1391290265257. The reversal of 1391290265164 is 4615620921931.

It is a super-2 number, since 2×1391290265164² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173911283142 + ... + 173911283149.

Almost surely, 2^{1391290265164} is an apocalyptic number.

It is an amenable number.

1391290265164 is a deficient number, since it is larger than the sum of its proper divisors (1043467698880).

1391290265164 is a wasteful number, since it uses less digits than its factorization.

1391290265164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347822566295 (or 347822566293 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 1391290265164 in words is "one trillion, three hundred ninety-one billion, two hundred ninety million, two hundred sixty-five thousand, one hundred sixty-four".