3750400061 has 2 divisors, whose sum is σ = 3750400062. Its totient is φ = 3750400060.

The previous prime is 3750400037. The next prime is 3750400081. The reversal of 3750400061 is 1600040573.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3588728836 + 161671225 = 59906^2 + 12715^2 .

It is a cyclic number.

It is not a de Polignac number, because 3750400061 - 2⁶ = 3750399997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3750400061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3750400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875200030 + 1875200031.

It is an arithmetic number, because the mean of its divisors is an integer number (1875200031).

Almost surely, 2^3750400061 is an apocalyptic number.

It is an amenable number.

3750400061 is a deficient number, since it is larger than the sum of its proper divisors (1).

3750400061 is an equidigital number, since it uses as much as digits as its factorization.

3750400061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3750400061 is about 61240.5099668512. The cubic root of 3750400061 is about 1553.6714991254.

The spelling of 3750400061 in words is "three billion, seven hundred fifty million, four hundred thousand, sixty-one".