534238843978 has 16 divisors (see below), whose sum is σ = 915861023424. Its totient is φ = 228953753280.

The previous prime is 534238843973. The next prime is 534238843993. The reversal of 534238843978 is 879348832435.

It is a super-2 number, since 2×534238843978² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (534238843973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124173 + ... + 1041103.

It is an arithmetic number, because the mean of its divisors is an integer number (57241313964).

Almost surely, 2^534238843978 is an apocalyptic number.

534238843978 is a deficient number, since it is larger than the sum of its proper divisors (381622179446).

534238843978 is a wasteful number, since it uses less digits than its factorization.

534238843978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958557.

The product of its digits is 139345920, while the sum is 64.

The spelling of 534238843978 in words is "five hundred thirty-four billion, two hundred thirty-eight million, eight hundred forty-three thousand, nine hundred seventy-eight".