49011001001 has 4 divisors (see below), whose sum is σ = 51141914112. Its totient is φ = 46880087892.

The previous prime is 49011000989. The next prime is 49011001007. The reversal of 49011001001 is 10010011094.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 49011001001 - 2⁶ = 49011000937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49011001007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1065456521 + ... + 1065456566.

It is an arithmetic number, because the mean of its divisors is an integer number (12785478528).

Almost surely, 2^49011001001 is an apocalyptic number.

It is an amenable number.

49011001001 is a deficient number, since it is larger than the sum of its proper divisors (2130913111).

49011001001 is a wasteful number, since it uses less digits than its factorization.

49011001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130913110.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 49011001001 its reverse (10010011094), we get a palindrome (59021012095).

The spelling of 49011001001 in words is "forty-nine billion, eleven million, one thousand, one".