67347963540 has 1080 divisors, whose sum is σ = 267172123680. Its totient is φ = 14144232960.

The previous prime is 67347963511. The next prime is 67347963563. The reversal of 67347963540 is 4536974376.

It is a happy number.

67347963540 is a `hidden beast` number, since 6 + 7 + 3 + 4 + 7 + 96 + 3 + 540 = 666.

67347963540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 629420167 + ... + 629420273.

It is an arithmetic number, because the mean of its divisors is an integer number (247381596).

Almost surely, 2^67347963540 is an apocalyptic number.

67347963540 is a gapful number since it is divisible by the number (60) 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 67347963540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133586061840).

67347963540 is an abundant number, since it is smaller than the sum of its proper divisors (199824160140).

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

67347963540 is a wasteful number, since it uses less digits than its factorization.

67347963540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 11430720, while the sum is 54.

The spelling of 67347963540 in words is "sixty-seven billion, three hundred forty-seven million, nine hundred sixty-three thousand, five hundred forty".