1898652255979 has 2 divisors, whose sum is σ = 1898652255980. Its totient is φ = 1898652255978.

The previous prime is 1898652255943. The next prime is 1898652256049. The reversal of 1898652255979 is 9795522568981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1898652255979 - 2²³ = 1898643867371 is a prime.

It is a super-2 number, since 2×1898652255979² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1898652252979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949326127989 + 949326127990.

It is an arithmetic number, because the mean of its divisors is an integer number (949326127990).

Almost surely, 2^{1898652255979} is an apocalyptic number.

1898652255979 is a deficient number, since it is larger than the sum of its proper divisors (1).

1898652255979 is an equidigital number, since it uses as much as digits as its factorization.

1898652255979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776000, while the sum is 76.

The spelling of 1898652255979 in words is "one trillion, eight hundred ninety-eight billion, six hundred fifty-two million, two hundred fifty-five thousand, nine hundred seventy-nine".