19162105428972 has 48 divisors (see below), whose sum is σ = 48778685891712. Its totient is φ = 5806410814080.

The previous prime is 19162105428929. The next prime is 19162105429021. The reversal of 19162105428972 is 27982450126191.

It is a happy number.

It is a super-2 number, since 2×19162105428972² (a number of 27 digits) contains 22 as substring.

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, 916638 + ... + 6258149.

It is an arithmetic number, because the mean of its divisors is an integer number (1016222622744).

Almost surely, 2^{19162105428972} is an apocalyptic number.

19162105428972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19162105428972 is an abundant number, since it is smaller than the sum of its proper divisors (29616580462740).

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

19162105428972 is a wasteful number, since it uses less digits than its factorization.

19162105428972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7195038 (or 7195036 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 57.

The spelling of 19162105428972 in words is "nineteen trillion, one hundred sixty-two billion, one hundred five million, four hundred twenty-eight thousand, nine hundred seventy-two".