78268353031 has 8 divisors (see below), whose sum is σ = 85387369104. Its totient is φ = 71149955520.

The previous prime is 78268353013. The next prime is 78268353101. The reversal of 78268353031 is 13035386287.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78268353031 - 2¹³ = 78268344839 is a prime.

It is a super-2 number, since 2×78268353031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78268353001) 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, 133245 + ... + 417481.

It is an arithmetic number, because the mean of its divisors is an integer number (10673421138).

Almost surely, 2^78268353031 is an apocalyptic number.

78268353031 is a deficient number, since it is larger than the sum of its proper divisors (7119016073).

78268353031 is a wasteful number, since it uses less digits than its factorization.

78268353031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309281.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 78268353031 in words is "seventy-eight billion, two hundred sixty-eight million, three hundred fifty-three thousand, thirty-one".