1620281914998 has 16 divisors (see below), whose sum is σ = 3272648621616. Its totient is φ = 534746506400.

The previous prime is 1620281914991. The next prime is 1620281915023. The reversal of 1620281914998 is 8994191820261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620281914991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1336865661 + ... + 1336866872.

It is an arithmetic number, because the mean of its divisors is an integer number (204540538851).

Almost surely, 2^{1620281914998} is an apocalyptic number.

1620281914998 is an abundant number, since it is smaller than the sum of its proper divisors (1652366706618).

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

1620281914998 is a wasteful number, since it uses less digits than its factorization.

1620281914998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673732639.

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 1620281914998 in words is "one trillion, six hundred twenty billion, two hundred eighty-one million, nine hundred fourteen thousand, nine hundred ninety-eight".