388762920813 has 16 divisors (see below), whose sum is σ = 519624574976. Its totient is φ = 258538858560.

The previous prime is 388762920787. The next prime is 388762920839. The reversal of 388762920813 is 318029267883.

It is an interprime number because it is at equal distance from previous prime (388762920787) and next prime (388762920839).

It is a de Polignac number, because none of the positive numbers 2^k-388762920813 is a prime.

It is a super-2 number, since 2×388762920813² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388762920863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2627031 + ... + 2771067.

It is an arithmetic number, because the mean of its divisors is an integer number (32476535936).

Almost surely, 2^388762920813 is an apocalyptic number.

It is an amenable number.

388762920813 is a deficient number, since it is larger than the sum of its proper divisors (130861654163).

388762920813 is a wasteful number, since it uses less digits than its factorization.

388762920813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146244.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 388762920813 in words is "three hundred eighty-eight billion, seven hundred sixty-two million, nine hundred twenty thousand, eight hundred thirteen".