1264837622500 has 135 divisors (see below), whose sum is σ = 2810042094783. Its totient is φ = 497995020000.

The previous prime is 1264837622449. The next prime is 1264837622539. The reversal of 1264837622500 is 52267384621.

The square root of 1264837622500 is 1124650.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 99163269604 + 1165674352896 = 314902^2 + 1079664^2 .

It is a super-2 number, since 2×1264837622500² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 4667297365 + ... + 4667297635.

Almost surely, 2^{1264837622500} is an apocalyptic number.

1264837622500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264837622500 is the 1124650-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264837622500

1264837622500 is an abundant number, since it is smaller than the sum of its proper divisors (1545204472283).

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

1264837622500 is an frugal number, since it uses more digits than its factorization.

1264837622500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 46.

The spelling of 1264837622500 in words is "one trillion, two hundred sixty-four billion, eight hundred thirty-seven million, six hundred twenty-two thousand, five hundred".