120828870840 has 64 divisors (see below), whose sum is σ = 362963216160. Its totient is φ = 32178667520.

The previous prime is 120828870839. The next prime is 120828870853. The reversal of 120828870840 is 48078828021.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 120828870840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570249 + ... + 752888.

Almost surely, 2^120828870840 is an apocalyptic number.

120828870840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120828870840 is an abundant number, since it is smaller than the sum of its proper divisors (242134345320).

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

120828870840 is a wasteful number, since it uses less digits than its factorization.

120828870840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323912 (or 1323908 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 48.

The spelling of 120828870840 in words is "one hundred twenty billion, eight hundred twenty-eight million, eight hundred seventy thousand, eight hundred forty".