76949487770 has 16 divisors (see below), whose sum is σ = 139566401568. Its totient is φ = 30544834320.

The previous prime is 76949487749. The next prime is 76949487773. The reversal of 76949487770 is 7778494967.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 76949487770.

It is not an unprimeable number, because it can be changed into a prime (76949487773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29368724 + ... + 29371343.

It is an arithmetic number, because the mean of its divisors is an integer number (8722900098).

Almost surely, 2^76949487770 is an apocalyptic number.

76949487770 is a deficient number, since it is larger than the sum of its proper divisors (62616913798).

76949487770 is a wasteful number, since it uses less digits than its factorization.

76949487770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58740205.

The product of its (nonzero) digits is 149361408, while the sum is 68.

The spelling of 76949487770 in words is "seventy-six billion, nine hundred forty-nine million, four hundred eighty-seven thousand, seven hundred seventy".