1238870477793 has 16 divisors (see below), whose sum is σ = 1778923823040. Its totient is φ = 762367740864.

The previous prime is 1238870477773. The next prime is 1238870477833. The reversal of 1238870477793 is 3977740788321.

It is not a de Polignac number, because 1238870477793 - 2¹⁶ = 1238870412257 is a prime.

It is a super-2 number, since 2×1238870477793² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1238870477723) 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, 2087998 + ... + 2614856.

It is an arithmetic number, because the mean of its divisors is an integer number (111182738940).

Almost surely, 2^{1238870477793} is an apocalyptic number.

1238870477793 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1238870477793 is a deficient number, since it is larger than the sum of its proper divisors (540053345247).

1238870477793 is a wasteful number, since it uses less digits than its factorization.

1238870477793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 587168.

The product of its (nonzero) digits is 99574272, while the sum is 66.

The spelling of 1238870477793 in words is "one trillion, two hundred thirty-eight billion, eight hundred seventy million, four hundred seventy-seven thousand, seven hundred ninety-three".