3747681226938 has 64 divisors (see below), whose sum is σ = 8331928510464. Its totient is φ = 1114114248000.

The previous prime is 3747681226931. The next prime is 3747681227029. The reversal of 3747681226938 is 8396221867473.

It is a super-2 number, since 2×3747681226938² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (3747681226931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35875803 + ... + 35980113.

It is an arithmetic number, because the mean of its divisors is an integer number (130186382976).

Almost surely, 2^{3747681226938} is an apocalyptic number.

3747681226938 is an abundant number, since it is smaller than the sum of its proper divisors (4584247283526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3747681226938 is a wasteful number, since it uses less digits than its factorization.

3747681226938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114651.

The product of its digits is 146313216, while the sum is 66.

The spelling of 3747681226938 in words is "three trillion, seven hundred forty-seven billion, six hundred eighty-one million, two hundred twenty-six thousand, nine hundred thirty-eight".