37808121397 has 8 divisors (see below), whose sum is σ = 40037348736. Its totient is φ = 35579474112.

The previous prime is 37808121371. The next prime is 37808121433. The reversal of 37808121397 is 79312180873.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 37808121397 - 2¹⁵ = 37808088629 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 37808121397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37808121697) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7053 + ... + 275074.

It is an arithmetic number, because the mean of its divisors is an integer number (5004668592).

Almost surely, 2^37808121397 is an apocalyptic number.

It is an amenable number.

37808121397 is a deficient number, since it is larger than the sum of its proper divisors (2229227339).

37808121397 is a wasteful number, since it uses less digits than its factorization.

37808121397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290027.

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 37808121397 in words is "thirty-seven billion, eight hundred eight million, one hundred twenty-one thousand, three hundred ninety-seven".