3625069663261 has 2 divisors, whose sum is σ = 3625069663262. Its totient is φ = 3625069663260.

The previous prime is 3625069663181. The next prime is 3625069663349. The reversal of 3625069663261 is 1623669605263.

It is a happy number.

3625069663261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2302123425625 + 1322946237636 = 1517275^2 + 1150194^2 .

It is a cyclic number.

It is not a de Polignac number, because 3625069663261 - 2¹³ = 3625069655069 is a prime.

It is a super-2 number, since 2×3625069663261² (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 (3625069663961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1812534831630 + 1812534831631.

It is an arithmetic number, because the mean of its divisors is an integer number (1812534831631).

Almost surely, 2^{3625069663261} is an apocalyptic number.

It is an amenable number.

3625069663261 is a deficient number, since it is larger than the sum of its proper divisors (1).

3625069663261 is an equidigital number, since it uses as much as digits as its factorization.

3625069663261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12597120, while the sum is 55.

The spelling of 3625069663261 in words is "three trillion, six hundred twenty-five billion, sixty-nine million, six hundred sixty-three thousand, two hundred sixty-one".