77345007790 has 32 divisors (see below), whose sum is σ = 139977097920. Its totient is φ = 30770379264.

The previous prime is 77345007737. The next prime is 77345007793. The reversal of 77345007790 is 9770054377.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77345007793) 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, 1570927 + ... + 1619413.

It is an arithmetic number, because the mean of its divisors is an integer number (4374284310).

Almost surely, 2^77345007790 is an apocalyptic number.

77345007790 is a deficient number, since it is larger than the sum of its proper divisors (62632090130).

77345007790 is a wasteful number, since it uses less digits than its factorization.

77345007790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49356.

The product of its (nonzero) digits is 1296540, while the sum is 49.

The spelling of 77345007790 in words is "seventy-seven billion, three hundred forty-five million, seven thousand, seven hundred ninety".