76214798978 has 4 divisors (see below), whose sum is σ = 114322198470. Its totient is φ = 38107399488.

The previous prime is 76214798963. The next prime is 76214799013. The reversal of 76214798978 is 87989741267.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 66400528489 + 9814270489 = 257683^2 + 99067^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19053699743 + ... + 19053699746.

Almost surely, 2^76214798978 is an apocalyptic number.

76214798978 is a deficient number, since it is larger than the sum of its proper divisors (38107399492).

76214798978 is a wasteful number, since it uses less digits than its factorization.

76214798978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38107399491.

The product of its digits is 85349376, while the sum is 68.

The spelling of 76214798978 in words is "seventy-six billion, two hundred fourteen million, seven hundred ninety-eight thousand, nine hundred seventy-eight".