67545620490 has 64 divisors (see below), whose sum is σ = 164013569280. Its totient is φ = 17801817600.

The previous prime is 67545620489. The next prime is 67545620497. The reversal of 67545620490 is 9402654576.

It is not an unprimeable number, because it can be changed into a prime (67545620497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 854566 + ... + 930254.

It is an arithmetic number, because the mean of its divisors is an integer number (2562712020).

Almost surely, 2^67545620490 is an apocalyptic number.

67545620490 is an abundant number, since it is smaller than the sum of its proper divisors (96467948790).

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

67545620490 is a wasteful number, since it uses less digits than its factorization.

67545620490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76047.

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 67545620490 in words is "sixty-seven billion, five hundred forty-five million, six hundred twenty thousand, four hundred ninety".