61946794198 has 4 divisors (see below), whose sum is σ = 92920191300. Its totient is φ = 30973397098.

The previous prime is 61946794193. The next prime is 61946794199. The reversal of 61946794198 is 89149764916.

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

It is a super-2 number, since 2×61946794198² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61946794193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15486698548 + ... + 15486698551.

It is an arithmetic number, because the mean of its divisors is an integer number (23230047825).

Almost surely, 2^61946794198 is an apocalyptic number.

61946794198 is a deficient number, since it is larger than the sum of its proper divisors (30973397102).

61946794198 is a wasteful number, since it uses less digits than its factorization.

61946794198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30973397101.

The product of its digits is 23514624, while the sum is 64.

The spelling of 61946794198 in words is "sixty-one billion, nine hundred forty-six million, seven hundred ninety-four thousand, one hundred ninety-eight".