997338765061 has 8 divisors (see below), whose sum is σ = 998071956000. Its totient is φ = 996605683920.

The previous prime is 997338765047. The next prime is 997338765109. The reversal of 997338765061 is 160567833799.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 997338765061 - 2⁵ = 997338765029 is a prime.

It is a super-2 number, since 2×997338765061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 997338764984 and 997338765002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (997338765041) 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, 28917135 + ... + 28951603.

It is an arithmetic number, because the mean of its divisors is an integer number (124758994500).

Almost surely, 2^997338765061 is an apocalyptic number.

It is an amenable number.

997338765061 is a deficient number, since it is larger than the sum of its proper divisors (733190939).

997338765061 is a wasteful number, since it uses less digits than its factorization.

997338765061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54899.

The product of its (nonzero) digits is 51438240, while the sum is 64.

The spelling of 997338765061 in words is "nine hundred ninety-seven billion, three hundred thirty-eight million, seven hundred sixty-five thousand, sixty-one".