1390952476989 has 32 divisors (see below), whose sum is σ = 2111144048640. Its totient is φ = 904640664816.

The previous prime is 1390952476987. The next prime is 1390952477021. The reversal of 1390952476989 is 9896742590931.

1390952476989 is a `hidden beast` number, since 1 + 3 + 9 + 0 + 9 + 524 + 7 + 6 + 98 + 9 = 666.

It is not a de Polignac number, because 1390952476989 - 2¹ = 1390952476987 is a prime.

It is a super-2 number, since 2×1390952476989² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1390952476987) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 235804 + ... + 1684490.

It is an arithmetic number, because the mean of its divisors is an integer number (65973251520).

It is a 1-persistent number, because it is pandigital, but 2⋅1390952476989 = 2781904953978 is not.

Almost surely, 2^{1390952476989} is an apocalyptic number.

It is an amenable number.

1390952476989 is a deficient number, since it is larger than the sum of its proper divisors (720191571651).

1390952476989 is a wasteful number, since it uses less digits than its factorization.

1390952476989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449566 (or 1449560 counting only the distinct ones).

The product of its (nonzero) digits is 264539520, while the sum is 72.

The spelling of 1390952476989 in words is "one trillion, three hundred ninety billion, nine hundred fifty-two million, four hundred seventy-six thousand, nine hundred eighty-nine".