1672420554812 has 24 divisors (see below), whose sum is σ = 3345713967456. Its totient is φ = 716564625408.

The previous prime is 1672420554811. The next prime is 1672420554923. The reversal of 1672420554812 is 2184550242761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672420554811) 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, 7684133 + ... + 7898780.

It is an arithmetic number, because the mean of its divisors is an integer number (139404748644).

Almost surely, 2^{1672420554812} is an apocalyptic number.

It is an amenable number.

1672420554812 is an abundant number, since it is smaller than the sum of its proper divisors (1673293412644).

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

1672420554812 is a wasteful number, since it uses less digits than its factorization.

1672420554812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15586757 (or 15586755 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 1672420554812 in words is "one trillion, six hundred seventy-two billion, four hundred twenty million, five hundred fifty-four thousand, eight hundred twelve".