120957209690 has 8 divisors (see below), whose sum is σ = 217722977460. Its totient is φ = 48382883872.

The previous prime is 120957209603. The next prime is 120957209701. The reversal of 120957209690 is 96902759021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 118053400921 + 2903808769 = 343589^2 + 53887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×120957209690² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6047860475 + ... + 6047860494.

Almost surely, 2^120957209690 is an apocalyptic number.

120957209690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120957209690 is a deficient number, since it is larger than the sum of its proper divisors (96765767770).

120957209690 is a wasteful number, since it uses less digits than its factorization.

120957209690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12095720976.

The product of its (nonzero) digits is 612360, while the sum is 50.

The spelling of 120957209690 in words is "one hundred twenty billion, nine hundred fifty-seven million, two hundred nine thousand, six hundred ninety".