247252378000 has 80 divisors (see below), whose sum is σ = 606779806464. Its totient is φ = 97424764800.

The previous prime is 247252377949. The next prime is 247252378003. The reversal of 247252378000 is 873252742.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×247252378000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (247252378003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 788584 + ... + 1056583.

Almost surely, 2^247252378000 is an apocalyptic number.

247252378000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

247252378000 is an abundant number, since it is smaller than the sum of its proper divisors (359527428464).

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

247252378000 is a wasteful number, since it uses less digits than its factorization.

247252378000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1845257 (or 1845241 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 247252378000 in words is "two hundred forty-seven billion, two hundred fifty-two million, three hundred seventy-eight thousand".