77715100153 has 4 divisors (see below), whose sum is σ = 77717679268. Its totient is φ = 77712521040.

The previous prime is 77715100147. The next prime is 77715100219. The reversal of 77715100153 is 35100151777.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35100151777 = 797 ⋅44040341.

It can be written as a sum of positive squares in 2 ways, for example, as 20228803984 + 57486296169 = 142228^2 + 239763^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77715100153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77715100753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243818 + ... + 1304803.

It is an arithmetic number, because the mean of its divisors is an integer number (19429419817).

Almost surely, 2^77715100153 is an apocalyptic number.

It is an amenable number.

77715100153 is a deficient number, since it is larger than the sum of its proper divisors (2579115).

77715100153 is a wasteful number, since it uses less digits than its factorization.

77715100153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2579114.

The product of its (nonzero) digits is 25725, while the sum is 37.

The spelling of 77715100153 in words is "seventy-seven billion, seven hundred fifteen million, one hundred thousand, one hundred fifty-three".