26258972740 has 192 divisors, whose sum is σ = 74981007360. Its totient is φ = 7458946560.

The previous prime is 26258972683. The next prime is 26258972767. The reversal of 26258972740 is 4727985262.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1573279 + ... + 1589881.

It is an arithmetic number, because the mean of its divisors is an integer number (390526080).

Almost surely, 2^26258972740 is an apocalyptic number.

26258972740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26258972740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37490503680).

26258972740 is an abundant number, since it is smaller than the sum of its proper divisors (48722034620).

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

26258972740 is a wasteful number, since it uses less digits than its factorization.

26258972740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16722 (or 16720 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 52.

The spelling of 26258972740 in words is "twenty-six billion, two hundred fifty-eight million, nine hundred seventy-two thousand, seven hundred forty".