2051472399 has 32 divisors (see below), whose sum is σ = 3016341504. Its totient is φ = 1234544640.

The previous prime is 2051472361. The next prime is 2051472443. The reversal of 2051472399 is 9932741502.

It is not a de Polignac number, because 2051472399 - 2²¹ = 2049375247 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2051472399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2051472299) 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, 172912 + ... + 184394.

It is an arithmetic number, because the mean of its divisors is an integer number (94260672).

Almost surely, 2^2051472399 is an apocalyptic number.

2051472399 is a deficient number, since it is larger than the sum of its proper divisors (964869105).

2051472399 is a wasteful number, since it uses less digits than its factorization.

2051472399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11647.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 2051472399 is about 45293.1826989449. The cubic root of 2051472399 is about 1270.6381563524.

The spelling of 2051472399 in words is "two billion, fifty-one million, four hundred seventy-two thousand, three hundred ninety-nine".