102219977459 has 2 divisors, whose sum is σ = 102219977460. Its totient is φ = 102219977458.

The previous prime is 102219977429. The next prime is 102219977473. The reversal of 102219977459 is 954779912201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102219977459 - 2¹⁶ = 102219911923 is a prime.

It is not a weakly prime, because it can be changed into another prime (102219977429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51109988729 + 51109988730.

It is an arithmetic number, because the mean of its divisors is an integer number (51109988730).

Almost surely, 2^102219977459 is an apocalyptic number.

102219977459 is a deficient number, since it is larger than the sum of its proper divisors (1).

102219977459 is an equidigital number, since it uses as much as digits as its factorization.

102219977459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2857680, while the sum is 56.

The spelling of 102219977459 in words is "one hundred two billion, two hundred nineteen million, nine hundred seventy-seven thousand, four hundred fifty-nine".