61108078423 has 18 divisors (see below), whose sum is σ = 70314169352. Its totient is φ = 52023494400.

The previous prime is 61108078387. The next prime is 61108078439. The reversal of 61108078423 is 32487080116.

It is not a de Polignac number, because 61108078423 - 2⁹ = 61108077911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61108078463) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 152389023 + ... + 152389423.

Almost surely, 2^61108078423 is an apocalyptic number.

61108078423 is a deficient number, since it is larger than the sum of its proper divisors (9206090929).

61108078423 is an frugal number, since it uses more digits than its factorization.

61108078423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 641 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 61108078423 in words is "sixty-one billion, one hundred eight million, seventy-eight thousand, four hundred twenty-three".