1492172685648 has 560 divisors, whose sum is σ = 4593014130960. Its totient is φ = 468841291776.

The previous prime is 1492172685599. The next prime is 1492172685673. The reversal of 1492172685648 is 8465862712941.

It is a happy number.

1492172685648 is a `hidden beast` number, since 1 + 4 + 9 + 2 + 1 + 7 + 2 + 68 + 564 + 8 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 336478884624 + 1155693801024 = 580068^2 + 1075032^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 2035705890 + ... + 2035706622.

Almost surely, 2^{1492172685648} is an apocalyptic number.

1492172685648 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1492172685648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2296507065480).

1492172685648 is an abundant number, since it is smaller than the sum of its proper divisors (3100841445312).

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

1492172685648 is an equidigital number, since it uses as much as digits as its factorization.

1492172685648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938 (or 917 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 63.

The spelling of 1492172685648 in words is "one trillion, four hundred ninety-two billion, one hundred seventy-two million, six hundred eighty-five thousand, six hundred forty-eight".