861341337998 has 4 divisors (see below), whose sum is σ = 1292012007000. Its totient is φ = 430670668998.

The previous prime is 861341337979. The next prime is 861341338031. The reversal of 861341337998 is 899733143168.

861341337998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 861341337998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215335334498 + ... + 215335334501.

It is an arithmetic number, because the mean of its divisors is an integer number (323003001750).

Almost surely, 2^861341337998 is an apocalyptic number.

861341337998 is a deficient number, since it is larger than the sum of its proper divisors (430670669002).

861341337998 is a wasteful number, since it uses less digits than its factorization.

861341337998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430670669001.

The product of its digits is 23514624, while the sum is 62.

The spelling of 861341337998 in words is "eight hundred sixty-one billion, three hundred forty-one million, three hundred thirty-seven thousand, nine hundred ninety-eight".