120870007780 has 24 divisors (see below), whose sum is σ = 254071359360. Its totient is φ = 48301461600.

The previous prime is 120870007733. The next prime is 120870007781. The reversal of 120870007780 is 87700078021.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (120870007781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2887546 + ... + 2929105.

It is an arithmetic number, because the mean of its divisors is an integer number (10586306640).

Almost surely, 2^120870007780 is an apocalyptic number.

120870007780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120870007780 is an abundant number, since it is smaller than the sum of its proper divisors (133201351580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120870007780 is a wasteful number, since it uses less digits than its factorization.

120870007780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5817699 (or 5817697 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 40.

The spelling of 120870007780 in words is "one hundred twenty billion, eight hundred seventy million, seven thousand, seven hundred eighty".