7138402404037 has 4 divisors (see below), whose sum is σ = 7169039324460. Its totient is φ = 7107765483616.

The previous prime is 7138402403989. The next prime is 7138402404113. The reversal of 7138402404037 is 7304042048317.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1920860174401 + 5217542229636 = 1385951^2 + 2284194^2 .

It is a cyclic number.

It is not a de Polignac number, because 7138402404037 - 2²³ = 7138394015429 is a prime.

It is a super-2 number, since 2×7138402404037² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7138402403984 and 7138402404002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7138402414037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15318459862 + ... + 15318460327.

It is an arithmetic number, because the mean of its divisors is an integer number (1792259831115).

Almost surely, 2^{7138402404037} is an apocalyptic number.

It is an amenable number.

7138402404037 is a deficient number, since it is larger than the sum of its proper divisors (30636920423).

7138402404037 is a wasteful number, since it uses less digits than its factorization.

7138402404037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30636920422.

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 7138402404037 in words is "seven trillion, one hundred thirty-eight billion, four hundred two million, four hundred four thousand, thirty-seven".