5201494781 has 16 divisors (see below), whose sum is σ = 6416928000. Its totient is φ = 4117521408.

The previous prime is 5201494763. The next prime is 5201494901. The reversal of 5201494781 is 1874941025.

It is not a de Polignac number, because 5201494781 - 2⁶ = 5201494717 is a prime.

It is a super-2 number, since 2×5201494781² = 54111095913540475922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5201494741) 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, 552356 + ... + 561693.

It is an arithmetic number, because the mean of its divisors is an integer number (401058000).

Almost surely, 2^5201494781 is an apocalyptic number.

It is an amenable number.

5201494781 is a deficient number, since it is larger than the sum of its proper divisors (1215433219).

5201494781 is a wasteful number, since it uses less digits than its factorization.

5201494781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114108.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 5201494781 is about 72121.3892059769. The cubic root of 5201494781 is about 1732.6441996184.

The spelling of 5201494781 in words is "five billion, two hundred one million, four hundred ninety-four thousand, seven hundred eighty-one".