51308969401 has 8 divisors (see below), whose sum is σ = 51405959808. Its totient is φ = 51212070000.

The previous prime is 51308969363. The next prime is 51308969417. The reversal of 51308969401 is 10496980315.

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 51308969401 - 2²¹ = 51306872249 is a prime.

It is a super-2 number, since 2×51308969401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51308969431) 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, 1163566 + ... + 1206856.

It is an arithmetic number, because the mean of its divisors is an integer number (6425744976).

Almost surely, 2^51308969401 is an apocalyptic number.

It is an amenable number.

51308969401 is a deficient number, since it is larger than the sum of its proper divisors (96990407).

51308969401 is a wasteful number, since it uses less digits than its factorization.

51308969401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45503.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 51308969401 in words is "fifty-one billion, three hundred eight million, nine hundred sixty-nine thousand, four hundred one".