61440081802 has 8 divisors (see below), whose sum is σ = 100538315712. Its totient is φ = 27927309900.

The previous prime is 61440081793. The next prime is 61440081827. The reversal of 61440081802 is 20818004416.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396365474 + ... + 1396365517.

It is an arithmetic number, because the mean of its divisors is an integer number (12567289464).

Almost surely, 2^61440081802 is an apocalyptic number.

61440081802 is a deficient number, since it is larger than the sum of its proper divisors (39098233910).

61440081802 is a wasteful number, since it uses less digits than its factorization.

61440081802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2792731004.

The product of its (nonzero) digits is 12288, while the sum is 34.

The spelling of 61440081802 in words is "sixty-one billion, four hundred forty million, eighty-one thousand, eight hundred two".