2151354440043 has 48 divisors (see below), whose sum is σ = 3347118028800. Its totient is φ = 1326576556800.

The previous prime is 2151354440023. The next prime is 2151354440149. The reversal of 2151354440043 is 3400444531512.

2151354440043 is a `hidden beast` number, since 21 + 5 + 13 + 544 + 40 + 0 + 43 = 666.

It is not a de Polignac number, because 2151354440043 - 2¹³ = 2151354431851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2151354440003) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30286218 + ... + 30357168.

It is an arithmetic number, because the mean of its divisors is an integer number (69731625600).

Almost surely, 2^{2151354440043} is an apocalyptic number.

2151354440043 is a deficient number, since it is larger than the sum of its proper divisors (1195763588757).

2151354440043 is a wasteful number, since it uses less digits than its factorization.

2151354440043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74392 (or 74389 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 2151354440043 its reverse (3400444531512), we get a palindrome (5551798971555).

The spelling of 2151354440043 in words is "two trillion, one hundred fifty-one billion, three hundred fifty-four million, four hundred forty thousand, forty-three".