37798729399 has 4 divisors (see below), whose sum is σ = 38025069264. Its totient is φ = 37572389536.

The previous prime is 37798729393. The next prime is 37798729403. The reversal of 37798729399 is 99392789773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99392789773 = 389 ⋅255508457.

It is a cyclic number.

It is not a de Polignac number, because 37798729399 - 2⁹ = 37798728887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37798729393) 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, 113169682 + ... + 113170015.

It is an arithmetic number, because the mean of its divisors is an integer number (9506267316).

Almost surely, 2^37798729399 is an apocalyptic number.

37798729399 is a deficient number, since it is larger than the sum of its proper divisors (226339865).

37798729399 is a wasteful number, since it uses less digits than its factorization.

37798729399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226339864.

The product of its digits is 324060912, while the sum is 73.

The spelling of 37798729399 in words is "thirty-seven billion, seven hundred ninety-eight million, seven hundred twenty-nine thousand, three hundred ninety-nine".