1949476574721 has 16 divisors (see below), whose sum is σ = 2799311751936. Its totient is φ = 1199650747776.

The previous prime is 1949476574719. The next prime is 1949476574743. The reversal of 1949476574721 is 1274756749491.

It is not a de Polignac number, because 1949476574721 - 2¹ = 1949476574719 is a prime.

It is a super-3 number, since 3×1949476574721³ (a number of 38 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1949476574821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254376 + ... + 2339318.

It is an arithmetic number, because the mean of its divisors is an integer number (174956984496).

Almost surely, 2^{1949476574721} is an apocalyptic number.

It is an amenable number.

1949476574721 is a deficient number, since it is larger than the sum of its proper divisors (849835177215).

1949476574721 is a wasteful number, since it uses less digits than its factorization.

1949476574721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131032.

The product of its digits is 106686720, while the sum is 66.

The spelling of 1949476574721 in words is "one trillion, nine hundred forty-nine billion, four hundred seventy-six million, five hundred seventy-four thousand, seven hundred twenty-one".