1264760040621 has 16 divisors (see below), whose sum is σ = 2102458249728. Its totient is φ = 657018202800.

The previous prime is 1264760040581. The next prime is 1264760040679. The reversal of 1264760040621 is 1260400674621.

It is not a de Polignac number, because 1264760040621 - 2¹⁴ = 1264760024237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1264760040621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264760040221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2737575615 + ... + 2737576076.

It is an arithmetic number, because the mean of its divisors is an integer number (131403640608).

Almost surely, 2^{1264760040621} is an apocalyptic number.

1264760040621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1264760040621 is a deficient number, since it is larger than the sum of its proper divisors (837698209107).

1264760040621 is a wasteful number, since it uses less digits than its factorization.

1264760040621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5475151712.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 1264760040621 in words is "one trillion, two hundred sixty-four billion, seven hundred sixty million, forty thousand, six hundred twenty-one".