26420467540 has 24 divisors (see below), whose sum is σ = 57895286400. Its totient is φ = 10108700448.

The previous prime is 26420467523. The next prime is 26420467561. The reversal of 26420467540 is 4576402462.

It is a super-2 number, since 2×26420467540² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26420467493 and 26420467502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28717440 + ... + 28718359.

It is an arithmetic number, because the mean of its divisors is an integer number (2412303600).

Almost surely, 2^26420467540 is an apocalyptic number.

26420467540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26420467540 is an abundant number, since it is smaller than the sum of its proper divisors (31474818860).

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

26420467540 is a wasteful number, since it uses less digits than its factorization.

26420467540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57435831 (or 57435829 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 40.

The spelling of 26420467540 in words is "twenty-six billion, four hundred twenty million, four hundred sixty-seven thousand, five hundred forty".