1620280872084 has 48 divisors (see below), whose sum is σ = 4548156838400. Its totient is φ = 438572265696.

The previous prime is 1620280872083. The next prime is 1620280872107. The reversal of 1620280872084 is 4802780820261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620280872083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507605194 + ... + 507608385.

Almost surely, 2^{1620280872084} is an apocalyptic number.

1620280872084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1620280872084 is an abundant number, since it is smaller than the sum of its proper divisors (2927875966316).

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

1620280872084 is a wasteful number, since it uses less digits than its factorization.

1620280872084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015213612 (or 1015213610 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 48.

The spelling of 1620280872084 in words is "one trillion, six hundred twenty billion, two hundred eighty million, eight hundred seventy-two thousand, eighty-four".