1551890413753 has 2 divisors, whose sum is σ = 1551890413754. Its totient is φ = 1551890413752.

The previous prime is 1551890413673. The next prime is 1551890413793. The reversal of 1551890413753 is 3573140981551.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1467024819264 + 84865594489 = 1211208^2 + 291317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1551890413753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1551890413753.

It is not a weakly prime, because it can be changed into another prime (1551890413793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 775945206876 + 775945206877.

It is an arithmetic number, because the mean of its divisors is an integer number (775945206877).

Almost surely, 2^{1551890413753} is an apocalyptic number.

It is an amenable number.

1551890413753 is a deficient number, since it is larger than the sum of its proper divisors (1).

1551890413753 is an equidigital number, since it uses as much as digits as its factorization.

1551890413753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268000, while the sum is 52.

The spelling of 1551890413753 in words is "one trillion, five hundred fifty-one billion, eight hundred ninety million, four hundred thirteen thousand, seven hundred fifty-three".