997797614142 has 16 divisors (see below), whose sum is σ = 2280680260992. Its totient is φ = 285085032600.

The previous prime is 997797614041. The next prime is 997797614147. The reversal of 997797614142 is 241416797799.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997797614147) 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, 11878542984 + ... + 11878543067.

It is an arithmetic number, because the mean of its divisors is an integer number (142542516312).

Almost surely, 2^997797614142 is an apocalyptic number.

997797614142 is an abundant number, since it is smaller than the sum of its proper divisors (1282882646850).

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

997797614142 is a wasteful number, since it uses less digits than its factorization.

997797614142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23757086063.

The product of its digits is 48009024, while the sum is 66.

The spelling of 997797614142 in words is "nine hundred ninety-seven billion, seven hundred ninety-seven million, six hundred fourteen thousand, one hundred forty-two".