78265419662 has 4 divisors (see below), whose sum is σ = 117398129496. Its totient is φ = 39132709830.

The previous prime is 78265419653. The next prime is 78265419703. The reversal of 78265419662 is 26691456287.

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

It is a super-2 number, since 2×78265419662² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78265419598 and 78265419607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19566354914 + ... + 19566354917.

It is an arithmetic number, because the mean of its divisors is an integer number (29349532374).

Almost surely, 2^78265419662 is an apocalyptic number.

78265419662 is a deficient number, since it is larger than the sum of its proper divisors (39132709834).

78265419662 is a wasteful number, since it uses less digits than its factorization.

78265419662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39132709833.

The product of its digits is 8709120, while the sum is 56.

The spelling of 78265419662 in words is "seventy-eight billion, two hundred sixty-five million, four hundred nineteen thousand, six hundred sixty-two".