77738285520473 has 8 divisors (see below), whose sum is σ = 77746541529600. Its totient is φ = 77730029867088.

The previous prime is 77738285520391. The next prime is 77738285520491. The reversal of 77738285520473 is 37402558283777.

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

It is a cyclic number.

It is not a de Polignac number, because 77738285520473 - 2¹² = 77738285516377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77738285520073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 718261640 + ... + 718369862.

It is an arithmetic number, because the mean of its divisors is an integer number (9718317691200).

Almost surely, 2^{77738285520473} is an apocalyptic number.

It is an amenable number.

77738285520473 is a deficient number, since it is larger than the sum of its proper divisors (8256009127).

77738285520473 is a wasteful number, since it uses less digits than its factorization.

77738285520473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177871.

The product of its (nonzero) digits is 553190400, while the sum is 68.

The spelling of 77738285520473 in words is "seventy-seven trillion, seven hundred thirty-eight billion, two hundred eighty-five million, five hundred twenty thousand, four hundred seventy-three".