26719691430 has 64 divisors (see below), whose sum is σ = 68478566400. Its totient is φ = 6657624960.

The previous prime is 26719691429. The next prime is 26719691437. The reversal of 26719691430 is 3419691762.

It is a super-2 number, since 2×26719691430² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 26719691430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26719691437) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468390 + ... + 522329.

It is an arithmetic number, because the mean of its divisors is an integer number (1069977600).

Almost surely, 2^26719691430 is an apocalyptic number.

26719691430 is an abundant number, since it is smaller than the sum of its proper divisors (41758874970).

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

26719691430 is a wasteful number, since it uses less digits than its factorization.

26719691430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990789.

The product of its (nonzero) digits is 489888, while the sum is 48.

The spelling of 26719691430 in words is "twenty-six billion, seven hundred nineteen million, six hundred ninety-one thousand, four hundred thirty".