5415994101972 has 12 divisors (see below), whose sum is σ = 12637319571296. Its totient is φ = 1805331367320.

The previous prime is 5415994101953. The next prime is 5415994101979. The reversal of 5415994101972 is 2791014995145.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×5415994101972² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5415994101979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225666420904 + ... + 225666420927.

Almost surely, 2^{5415994101972} is an apocalyptic number.

It is an amenable number.

5415994101972 is an abundant number, since it is smaller than the sum of its proper divisors (7221325469324).

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

5415994101972 is a wasteful number, since it uses less digits than its factorization.

5415994101972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451332841838 (or 451332841836 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 57.

The spelling of 5415994101972 in words is "five trillion, four hundred fifteen billion, nine hundred ninety-four million, one hundred one thousand, nine hundred seventy-two".