4262420266640 has 80 divisors (see below), whose sum is σ = 10493460844272. Its totient is φ = 1604616978432.

The previous prime is 4262420266627. The next prime is 4262420266669. The reversal of 4262420266640 is 466620242624.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1445111728384 + 2817308538256 = 1202128^2 + 1678484^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 4262420266591 and 4262420266600.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60290192 + ... + 60360848.

Almost surely, 2^{4262420266640} is an apocalyptic number.

4262420266640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4262420266640 is an abundant number, since it is smaller than the sum of its proper divisors (6231040577632).

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

4262420266640 is a wasteful number, since it uses less digits than its factorization.

4262420266640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115044 (or 115038 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 44.

The spelling of 4262420266640 in words is "four trillion, two hundred sixty-two billion, four hundred twenty million, two hundred sixty-six thousand, six hundred forty".