77015231416346 has 4 divisors (see below), whose sum is σ = 115522847124522. Its totient is φ = 38507615708172.

The previous prime is 77015231416271. The next prime is 77015231416393. The reversal of 77015231416346 is 64361413251077.

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., 67344754768225 + 9670476648121 = 8206385^2 + 3109739^2 .

It is a super-2 number, since 2×77015231416346² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77015231416294 and 77015231416303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19253807854085 + ... + 19253807854088.

Almost surely, 2^{77015231416346} is an apocalyptic number.

77015231416346 is a deficient number, since it is larger than the sum of its proper divisors (38507615708176).

77015231416346 is a wasteful number, since it uses less digits than its factorization.

77015231416346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38507615708175.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 77015231416346 in words is "seventy-seven trillion, fifteen billion, two hundred thirty-one million, four hundred sixteen thousand, three hundred forty-six".