76538349801049 has 4 divisors (see below), whose sum is σ = 78606953849764. Its totient is φ = 74469745752336.

The previous prime is 76538349801047. The next prime is 76538349801143. The reversal of 76538349801049 is 94010894383567.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34596665263449 + 41941684537600 = 5881893^2 + 6476240^2 .

It is a cyclic number.

It is not a de Polignac number, because 76538349801049 - 2¹ = 76538349801047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76538349801047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1034302024302 + ... + 1034302024375.

It is an arithmetic number, because the mean of its divisors is an integer number (19651738462441).

Almost surely, 2^{76538349801049} is an apocalyptic number.

It is an amenable number.

76538349801049 is a deficient number, since it is larger than the sum of its proper divisors (2068604048715).

76538349801049 is a wasteful number, since it uses less digits than its factorization.

76538349801049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068604048714.

The product of its (nonzero) digits is 156764160, while the sum is 67.

The spelling of 76538349801049 in words is "seventy-six trillion, five hundred thirty-eight billion, three hundred forty-nine million, eight hundred one thousand, forty-nine".