398797137061 has 8 divisors (see below), whose sum is σ = 399251026944. Its totient is φ = 398343460560.

The previous prime is 398797137041. The next prime is 398797137071. The reversal of 398797137061 is 160731797893.

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-398797137061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398797137001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3847431 + ... + 3949723.

It is an arithmetic number, because the mean of its divisors is an integer number (49906378368).

Almost surely, 2^398797137061 is an apocalyptic number.

It is an amenable number.

398797137061 is a deficient number, since it is larger than the sum of its proper divisors (453889883).

398797137061 is a wasteful number, since it uses less digits than its factorization.

398797137061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106691.

The product of its (nonzero) digits is 12002256, while the sum is 61.

The spelling of 398797137061 in words is "three hundred ninety-eight billion, seven hundred ninety-seven million, one hundred thirty-seven thousand, sixty-one".