538373964949971 has 32 divisors (see below), whose sum is σ = 795229617600000. Its totient is φ = 322249909876224.

The previous prime is 538373964949969. The next prime is 538373964949979. The reversal of 538373964949971 is 179949469373835.

It is not a de Polignac number, because 538373964949971 - 2¹ = 538373964949969 is a prime.

It is a super-2 number, since 2×538373964949971² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (538373964949979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 614806221 + ... + 615681278.

It is an arithmetic number, because the mean of its divisors is an integer number (24850925550000).

Almost surely, 2^{538373964949971} is an apocalyptic number.

538373964949971 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

538373964949971 is a deficient number, since it is larger than the sum of its proper divisors (256855652650029).

538373964949971 is a wasteful number, since it uses less digits than its factorization.

538373964949971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230487915.

The product of its digits is 33331979520, while the sum is 87.

It can be divided in two parts, 538373964 and 949971, that added together give a palindrome (539323935).

The spelling of 538373964949971 in words is "five hundred thirty-eight trillion, three hundred seventy-three billion, nine hundred sixty-four million, nine hundred forty-nine thousand, nine hundred seventy-one".