1492197779492 has 192 divisors, whose sum is σ = 3209492160000. Its totient is φ = 606132301824.

The previous prime is 1492197779489. The next prime is 1492197779497. The reversal of 1492197779492 is 2949777912941.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1492197779497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 338441384 + ... + 338445792.

It is an arithmetic number, because the mean of its divisors is an integer number (16716105000).

Almost surely, 2^{1492197779492} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1492197779492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1604746080000).

1492197779492 is an abundant number, since it is smaller than the sum of its proper divisors (1717294380508).

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

1492197779492 is a wasteful number, since it uses less digits than its factorization.

1492197779492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643 (or 4627 counting only the distinct ones).

The product of its digits is 144027072, while the sum is 71.

The spelling of 1492197779492 in words is "one trillion, four hundred ninety-two billion, one hundred ninety-seven million, seven hundred seventy-nine thousand, four hundred ninety-two".