37840513381 has 16 divisors (see below), whose sum is σ = 43289040960. Its totient is φ = 32759233920.

The previous prime is 37840513363. The next prime is 37840513393. The reversal of 37840513381 is 18331504873.

It is a cyclic number.

It is not a de Polignac number, because 37840513381 - 2⁷ = 37840513253 is a prime.

It is a super-2 number, since 2×37840513381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37840513301) 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, 789195 + ... + 835768.

It is an arithmetic number, because the mean of its divisors is an integer number (2705565060).

Almost surely, 2^37840513381 is an apocalyptic number.

It is an amenable number.

37840513381 is a deficient number, since it is larger than the sum of its proper divisors (5448527579).

37840513381 is a wasteful number, since it uses less digits than its factorization.

37840513381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625076.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 37840513381 in words is "thirty-seven billion, eight hundred forty million, five hundred thirteen thousand, three hundred eighty-one".