77954480746 has 16 divisors (see below), whose sum is σ = 120250766376. Its totient is φ = 37873676736.

The previous prime is 77954480717. The next prime is 77954480753. The reversal of 77954480746 is 64708445977.

It can be written as a sum of positive squares in 4 ways, for example, as 76549055625 + 1405425121 = 276675^2 + 37489^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639781 + ... + 751816.

Almost surely, 2^77954480746 is an apocalyptic number.

77954480746 is a deficient number, since it is larger than the sum of its proper divisors (42296285630).

77954480746 is a wasteful number, since it uses less digits than its factorization.

77954480746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392393.

The product of its (nonzero) digits is 47416320, while the sum is 61.

The spelling of 77954480746 in words is "seventy-seven billion, nine hundred fifty-four million, four hundred eighty thousand, seven hundred forty-six".