997429278001 has 8 divisors (see below), whose sum is σ = 1075784592960. Its totient is φ = 919306818192.

The previous prime is 997429277987. The next prime is 997429278017. The reversal of 997429278001 is 100872924799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997429278001 is a prime.

It is a super-2 number, since 2×997429278001² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (997429278071) 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, 58204885 + ... + 58222018.

It is an arithmetic number, because the mean of its divisors is an integer number (134473074120).

Almost surely, 2^997429278001 is an apocalyptic number.

It is an amenable number.

997429278001 is a deficient number, since it is larger than the sum of its proper divisors (78355314959).

997429278001 is a wasteful number, since it uses less digits than its factorization.

997429278001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116427575.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 997429278001 in words is "nine hundred ninety-seven billion, four hundred twenty-nine million, two hundred seventy-eight thousand, one".