77761362336154 has 64 divisors (see below), whose sum is σ = 136507483008000. Its totient is φ = 32529558048768.

The previous prime is 77761362336149. The next prime is 77761362336157. The reversal of 77761362336154 is 45163326316777.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77761362336092 and 77761362336101.

It is not an unprimeable number, because it can be changed into a prime (77761362336157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591903922 + ... + 3591925570.

It is an arithmetic number, because the mean of its divisors is an integer number (2132929422000).

Almost surely, 2^{77761362336154} is an apocalyptic number.

77761362336154 is a deficient number, since it is larger than the sum of its proper divisors (58746120671846).

77761362336154 is a wasteful number, since it uses less digits than its factorization.

77761362336154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36127.

The product of its digits is 80015040, while the sum is 61.

The spelling of 77761362336154 in words is "seventy-seven trillion, seven hundred sixty-one billion, three hundred sixty-two million, three hundred thirty-six thousand, one hundred fifty-four".