3747750076381 has 2 divisors, whose sum is σ = 3747750076382. Its totient is φ = 3747750076380.

The previous prime is 3747750076373. The next prime is 3747750076397. The reversal of 3747750076381 is 1836700577473.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2804064117156 + 943685959225 = 1674534^2 + 971435^2 .

It is a cyclic number.

It is not a de Polignac number, because 3747750076381 - 2³ = 3747750076373 is a prime.

It is a super-2 number, since 2×3747750076381² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3747750076351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1873875038190 + 1873875038191.

It is an arithmetic number, because the mean of its divisors is an integer number (1873875038191).

Almost surely, 2^{3747750076381} is an apocalyptic number.

It is an amenable number.

3747750076381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3747750076381 is an equidigital number, since it uses as much as digits as its factorization.

3747750076381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20744640, while the sum is 58.

The spelling of 3747750076381 in words is "three trillion, seven hundred forty-seven billion, seven hundred fifty million, seventy-six thousand, three hundred eighty-one".