1213277470400 has 42 divisors (see below), whose sum is σ = 2985420879540. Its totient is φ = 485310987520.

The previous prime is 1213277470399. The next prime is 1213277470469. The reversal of 1213277470400 is 40747723121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 379147610 + ... + 379150809.

Almost surely, 2^{1213277470400} is an apocalyptic number.

1213277470400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213277470400 is an abundant number, since it is smaller than the sum of its proper divisors (1772143409140).

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

1213277470400 is an equidigital number, since it uses as much as digits as its factorization.

1213277470400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758298441 (or 758298426 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The spelling of 1213277470400 in words is "one trillion, two hundred thirteen billion, two hundred seventy-seven million, four hundred seventy thousand, four hundred".