1620272289084 has 48 divisors (see below), whose sum is σ = 4018974091776. Its totient is φ = 506295520000.

The previous prime is 1620272289059. The next prime is 1620272289127. The reversal of 1620272289084 is 4809822720261.

It is a super-4 number, since 4×1620272289084⁴ (a number of 50 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 15770532 + ... + 15872939.

It is an arithmetic number, because the mean of its divisors is an integer number (83728626912).

Almost surely, 2^{1620272289084} is an apocalyptic number.

It is an amenable number.

1620272289084 is an abundant number, since it is smaller than the sum of its proper divisors (2398701802692).

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

1620272289084 is a wasteful number, since it uses less digits than its factorization.

1620272289084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31643746 (or 31643744 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The spelling of 1620272289084 in words is "one trillion, six hundred twenty billion, two hundred seventy-two million, two hundred eighty-nine thousand, eighty-four".