67401070040 has 64 divisors (see below), whose sum is σ = 157190976000. Its totient is φ = 25992920448.

The previous prime is 67401070039. The next prime is 67401070057. The reversal of 67401070040 is 4007010476.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 67401069985 and 67401070012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141590 + ... + 393509.

It is an arithmetic number, because the mean of its divisors is an integer number (2456109000).

Almost surely, 2^67401070040 is an apocalyptic number.

It is an amenable number.

67401070040 is an abundant number, since it is smaller than the sum of its proper divisors (89789905960).

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

67401070040 is a wasteful number, since it uses less digits than its factorization.

67401070040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535224 (or 535220 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The spelling of 67401070040 in words is "sixty-seven billion, four hundred one million, seventy thousand, forty".