102521621145763 has 2 divisors, whose sum is σ = 102521621145764. Its totient is φ = 102521621145762.

The previous prime is 102521621145761. The next prime is 102521621145773. The reversal of 102521621145763 is 367541126125201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102521621145763 - 2¹ = 102521621145761 is a prime.

Together with 102521621145761, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (102521621145761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51260810572881 + 51260810572882.

It is an arithmetic number, because the mean of its divisors is an integer number (51260810572882).

Almost surely, 2^{102521621145763} is an apocalyptic number.

102521621145763 is a deficient number, since it is larger than the sum of its proper divisors (1).

102521621145763 is an equidigital number, since it uses as much as digits as its factorization.

102521621145763 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 46.

It can be divided in two parts, 10252162 and 1145763, that added together give a triangular number (11397925 = T₄₇₇₄).

The spelling of 102521621145763 in words is "one hundred two trillion, five hundred twenty-one billion, six hundred twenty-one million, one hundred forty-five thousand, seven hundred sixty-three".