49213131219 has 24 divisors (see below), whose sum is σ = 85516554240. Its totient is φ = 26641694448.

The previous prime is 49213131217. The next prime is 49213131221. The reversal of 49213131219 is 91213131294.

It is a happy number.

49213131219 is a `hidden beast` number, since 492 + 13 + 131 + 21 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (49213131217) and next prime (49213131221).

It is not a de Polignac number, because 49213131219 - 2¹ = 49213131217 is a prime.

It is a super-2 number, since 2×49213131219² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49213131217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20555667 + ... + 20558060.

It is an arithmetic number, because the mean of its divisors is an integer number (3563189760).

Almost surely, 2^49213131219 is an apocalyptic number.

49213131219 is a deficient number, since it is larger than the sum of its proper divisors (36303423021).

49213131219 is a wasteful number, since it uses less digits than its factorization.

49213131219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41113759 (or 41113756 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The spelling of 49213131219 in words is "forty-nine billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred nineteen".