77223418802 has 4 divisors (see below), whose sum is σ = 115835128206. Its totient is φ = 38611709400.

The previous prime is 77223418793. The next prime is 77223418859. The reversal of 77223418802 is 20881432277.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 72469178401 + 4754240401 = 269201^2 + 68951^2 .

It is a super-2 number, since 2×77223418802² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19305854699 + ... + 19305854702.

Almost surely, 2^77223418802 is an apocalyptic number.

77223418802 is a deficient number, since it is larger than the sum of its proper divisors (38611709404).

77223418802 is a wasteful number, since it uses less digits than its factorization.

77223418802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38611709403.

The product of its (nonzero) digits is 301056, while the sum is 44.

The spelling of 77223418802 in words is "seventy-seven billion, two hundred twenty-three million, four hundred eighteen thousand, eight hundred two".