1264027652650 has 24 divisors (see below), whose sum is σ = 2686961639520. Its totient is φ = 433380909360.

The previous prime is 1264027652609. The next prime is 1264027652707. The reversal of 1264027652650 is 562567204621.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1264027652650.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1805753440 + ... + 1805754139.

It is an arithmetic number, because the mean of its divisors is an integer number (111956734980).

Almost surely, 2^{1264027652650} is an apocalyptic number.

1264027652650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1264027652650 is an abundant number, since it is smaller than the sum of its proper divisors (1422933986870).

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

1264027652650 is a wasteful number, since it uses less digits than its factorization.

1264027652650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611507598 (or 3611507593 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 1264027652650 in words is "one trillion, two hundred sixty-four billion, twenty-seven million, six hundred fifty-two thousand, six hundred fifty".