26742978630 has 224 divisors, whose sum is σ = 78894943488. Its totient is φ = 6494515200.

The previous prime is 26742978601. The next prime is 26742978649. The reversal of 26742978630 is 3687924762.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 3838350 + ... + 3845310.

Almost surely, 2^26742978630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26742978630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39447471744).

26742978630 is an abundant number, since it is smaller than the sum of its proper divisors (52151964858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26742978630 is a wasteful number, since it uses less digits than its factorization.

26742978630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7034 (or 7019 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 26742978630 in words is "twenty-six billion, seven hundred forty-two million, nine hundred seventy-eight thousand, six hundred thirty".