264402526540 has 24 divisors (see below), whose sum is σ = 555259198032. Its totient is φ = 105758364480.

The previous prime is 264402526523. The next prime is 264402526541. The reversal of 264402526540 is 45625204462.

It is a junction number, because it is equal to n+sod(n) for n = 264402526493 and 264402526502.

It is not an unprimeable number, because it can be changed into a prime (264402526541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 788010 + ... + 1072270.

It is an arithmetic number, because the mean of its divisors is an integer number (23135799918).

Almost surely, 2^264402526540 is an apocalyptic number.

264402526540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264402526540 is an abundant number, since it is smaller than the sum of its proper divisors (290856671492).

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

264402526540 is a wasteful number, since it uses less digits than its factorization.

264402526540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330777 (or 330775 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 264402526540 in words is "two hundred sixty-four billion, four hundred two million, five hundred twenty-six thousand, five hundred forty".