1207478664 has 192 divisors, whose sum is σ = 3923337600. Its totient is φ = 340775424.

The previous prime is 1207478663. The next prime is 1207478687. The reversal of 1207478664 is 4668747021.

It is not an unprimeable number, because it can be changed into a prime (1207478663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1210614 + ... + 1211610.

It is an arithmetic number, because the mean of its divisors is an integer number (20434050).

Almost surely, 2^1207478664 is an apocalyptic number.

1207478664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1207478664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1961668800).

1207478664 is an abundant number, since it is smaller than the sum of its proper divisors (2715858936).

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

1207478664 is an equidigital number, since it uses as much as digits as its factorization.

1207478664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 1207478664 is about 34748.7937056814. The cubic root of 1207478664 is about 1064.8615729624.

The spelling of 1207478664 in words is "one billion, two hundred seven million, four hundred seventy-eight thousand, six hundred sixty-four".