61678401234 has 8 divisors (see below), whose sum is σ = 123356802480. Its totient is φ = 20559467076.

The previous prime is 61678401227. The next prime is 61678401241. The reversal of 61678401234 is 43210487616.

It is an interprime number because it is at equal distance from previous prime (61678401227) and next prime (61678401241).

It is a sphenic number, since it is the product of 3 distinct primes.

61678401234 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5139866764 + ... + 5139866775.

It is an arithmetic number, because the mean of its divisors is an integer number (15419600310).

Almost surely, 2^61678401234 is an apocalyptic number.

61678401234 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61678401234 is a wasteful number, since it uses less digits than its factorization.

61678401234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279733544.

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 61678401234 in words is "sixty-one billion, six hundred seventy-eight million, four hundred one thousand, two hundred thirty-four".