120454771980 has 24 divisors (see below), whose sum is σ = 337273361712. Its totient is φ = 32121272512.

The previous prime is 120454771967. The next prime is 120454771993. The reversal of 120454771980 is 89177454021.

It is an interprime number because it is at equal distance from previous prime (120454771967) and next prime (120454771993).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1003789707 + ... + 1003789826.

It is an arithmetic number, because the mean of its divisors is an integer number (14053056738).

Almost surely, 2^120454771980 is an apocalyptic number.

120454771980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120454771980 is an abundant number, since it is smaller than the sum of its proper divisors (216818589732).

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

120454771980 is a wasteful number, since it uses less digits than its factorization.

120454771980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007579545 (or 2007579543 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 120454771980 in words is "one hundred twenty billion, four hundred fifty-four million, seven hundred seventy-one thousand, nine hundred eighty".