2156434763 has 8 divisors (see below), whose sum is σ = 2464816128. Its totient is φ = 1848133224.

The previous prime is 2156434757. The next prime is 2156434769. The reversal of 2156434763 is 3674346512.

It is an interprime number because it is at equal distance from previous prime (2156434757) and next prime (2156434769).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2156434763 - 2⁶ = 2156434699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2156434763.

It is not an unprimeable number, because it can be changed into a prime (2156434769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58520 + ... + 87962.

It is an arithmetic number, because the mean of its divisors is an integer number (308102016).

Almost surely, 2^2156434763 is an apocalyptic number.

2156434763 is a deficient number, since it is larger than the sum of its proper divisors (308381365).

2156434763 is a wasteful number, since it uses less digits than its factorization.

2156434763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39913.

The product of its digits is 362880, while the sum is 41.

The square root of 2156434763 is about 46437.4284710082. The cubic root of 2156434763 is about 1291.9492121483.

The spelling of 2156434763 in words is "two billion, one hundred fifty-six million, four hundred thirty-four thousand, seven hundred sixty-three".