77884920034 has 8 divisors (see below), whose sum is σ = 116832341340. Its totient is φ = 38940806256.

The previous prime is 77884920007. The next prime is 77884920041. The reversal of 77884920034 is 43002948877.

It can be written as a sum of positive squares in 2 ways, for example, as 72519797025 + 5365123009 = 269295^2 + 73247^2 .

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

It is a super-2 number, since 2×77884920034² (a number of 23 digits) contains 22 as substring.

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, 767149 + ... + 862720.

Almost surely, 2^77884920034 is an apocalyptic number.

77884920034 is a deficient number, since it is larger than the sum of its proper divisors (38947421306).

77884920034 is a wasteful number, since it uses less digits than its factorization.

77884920034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653764.

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 77884920034 in words is "seventy-seven billion, eight hundred eighty-four million, nine hundred twenty thousand, thirty-four".