77077777154 has 32 divisors (see below), whose sum is σ = 132893879040. Its totient is φ = 32843740608.

The previous prime is 77077777151. The next prime is 77077777163. The reversal of 77077777154 is 45177777077.

It is a junction number, because it is equal to n+sod(n) for n = 77077777093 and 77077777102.

It is not an unprimeable number, because it can be changed into a prime (77077777151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1704059 + ... + 1748705.

It is an arithmetic number, because the mean of its divisors is an integer number (4152933720).

Almost surely, 2^77077777154 is an apocalyptic number.

77077777154 is a deficient number, since it is larger than the sum of its proper divisors (55816101886).

77077777154 is a wasteful number, since it uses less digits than its factorization.

77077777154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45362.

The product of its (nonzero) digits is 16470860, while the sum is 59.

The spelling of 77077777154 in words is "seventy-seven billion, seventy-seven million, seven hundred seventy-seven thousand, one hundred fifty-four".