37373740121 has 4 divisors (see below), whose sum is σ = 38242896912. Its totient is φ = 36504583332.

The previous prime is 37373740109. The next prime is 37373740277. The reversal of 37373740121 is 12104737373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-37373740121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (37373745121) 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, 434578331 + ... + 434578416.

It is an arithmetic number, because the mean of its divisors is an integer number (9560724228).

Almost surely, 2^37373740121 is an apocalyptic number.

It is an amenable number.

37373740121 is a deficient number, since it is larger than the sum of its proper divisors (869156791).

37373740121 is an equidigital number, since it uses as much as digits as its factorization.

37373740121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869156790.

The product of its (nonzero) digits is 74088, while the sum is 38.

The spelling of 37373740121 in words is "thirty-seven billion, three hundred seventy-three million, seven hundred forty thousand, one hundred twenty-one".