262260626640 has 40 divisors (see below), whose sum is σ = 813007943328. Its totient is φ = 69936167040.

The previous prime is 262260626633. The next prime is 262260626699. The reversal of 262260626640 is 46626062262.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 262260626592 and 262260626601.

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, 546376066 + ... + 546376545.

Almost surely, 2^262260626640 is an apocalyptic number.

262260626640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

262260626640 is an abundant number, since it is smaller than the sum of its proper divisors (550747316688).

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

262260626640 is a wasteful number, since it uses less digits than its factorization.

262260626640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092752627 (or 1092752621 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 42.

The spelling of 262260626640 in words is "two hundred sixty-two billion, two hundred sixty million, six hundred twenty-six thousand, six hundred forty".