1401637252751 has 2 divisors, whose sum is σ = 1401637252752. Its totient is φ = 1401637252750.

The previous prime is 1401637252693. The next prime is 1401637252787. The reversal of 1401637252751 is 1572527361041.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1401637252751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1401637252151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700818626375 + 700818626376.

It is an arithmetic number, because the mean of its divisors is an integer number (700818626376).

Almost surely, 2^{1401637252751} is an apocalyptic number.

1401637252751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1401637252751 is an equidigital number, since it uses as much as digits as its factorization.

1401637252751 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 1401637252751 in words is "one trillion, four hundred one billion, six hundred thirty-seven million, two hundred fifty-two thousand, seven hundred fifty-one".