77142950199 has 48 divisors (see below), whose sum is σ = 137466201600. Its totient is φ = 40711099968.

The previous prime is 77142950197. The next prime is 77142950233. The reversal of 77142950199 is 99105924177.

77142950199 is a `hidden beast` number, since 7 + 7 + 1 + 42 + 9 + 501 + 99 = 666.

It is not a de Polignac number, because 77142950199 - 2¹ = 77142950197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77142950197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 875889 + ... + 959930.

It is an arithmetic number, because the mean of its divisors is an integer number (2863879200).

Almost surely, 2^77142950199 is an apocalyptic number.

77142950199 is a deficient number, since it is larger than the sum of its proper divisors (60323251401).

77142950199 is a wasteful number, since it uses less digits than its factorization.

77142950199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835884 (or 1835881 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The spelling of 77142950199 in words is "seventy-seven billion, one hundred forty-two million, nine hundred fifty thousand, one hundred ninety-nine".