26990748792 has 288 divisors, whose sum is σ = 86974430400. Its totient is φ = 7537840128.

The previous prime is 26990748691. The next prime is 26990748793. The reversal of 26990748792 is 29784709962.

26990748792 is a `hidden beast` number, since 2 + 69 + 9 + 0 + 7 + 487 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26990748793) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 31494028 + ... + 31494884.

It is an arithmetic number, because the mean of its divisors is an integer number (301994550).

Almost surely, 2^26990748792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26990748792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43487215200).

26990748792 is an abundant number, since it is smaller than the sum of its proper divisors (59983681608).

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

26990748792 is a wasteful number, since it uses less digits than its factorization.

26990748792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075 (or 1061 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 26990748792 in words is "twenty-six billion, nine hundred ninety million, seven hundred forty-eight thousand, seven hundred ninety-two".