120879107857 has 2 divisors, whose sum is σ = 120879107858. Its totient is φ = 120879107856.

The previous prime is 120879107851. The next prime is 120879107861. The reversal of 120879107857 is 758701978021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118782933201 + 2096174656 = 344649^2 + 45784^2 .

It is a cyclic number.

It is not a de Polignac number, because 120879107857 - 2¹⁹ = 120878583569 is a prime.

It is a super-2 number, since 2×120879107857² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120879107798 and 120879107807.

It is not a weakly prime, because it can be changed into another prime (120879107851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60439553928 + 60439553929.

It is an arithmetic number, because the mean of its divisors is an integer number (60439553929).

Almost surely, 2^120879107857 is an apocalyptic number.

It is an amenable number.

120879107857 is a deficient number, since it is larger than the sum of its proper divisors (1).

120879107857 is an equidigital number, since it uses as much as digits as its factorization.

120879107857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1975680, while the sum is 55.

The spelling of 120879107857 in words is "one hundred twenty billion, eight hundred seventy-nine million, one hundred seven thousand, eight hundred fifty-seven".