27438608070 has 48 divisors (see below), whose sum is σ = 71434799280. Its totient is φ = 7307278272.

The previous prime is 27438608069. The next prime is 27438608077. The reversal of 27438608070 is 7080683472.

It is a happy number.

27438608070 is a `hidden beast` number, since 2 + 7 + 4 + 38 + 608 + 0 + 7 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27438608077) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 133240 + ... + 269499.

It is an arithmetic number, because the mean of its divisors is an integer number (1488224985).

Almost surely, 2^27438608070 is an apocalyptic number.

27438608070 is an abundant number, since it is smaller than the sum of its proper divisors (43996191210).

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

27438608070 is a wasteful number, since it uses less digits than its factorization.

27438608070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403509 (or 403506 counting only the distinct ones).

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

The spelling of 27438608070 in words is "twenty-seven billion, four hundred thirty-eight million, six hundred eight thousand, seventy".