706478407381 has 4 divisors (see below), whose sum is σ = 706633784352. Its totient is φ = 706323030412.

The previous prime is 706478407379. The next prime is 706478407399. The reversal of 706478407381 is 183704874607.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 706478407381 - 2¹ = 706478407379 is a prime.

It is a super-2 number, since 2×706478407381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706478407301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77681665 + ... + 77690758.

It is an arithmetic number, because the mean of its divisors is an integer number (176658446088).

Almost surely, 2^706478407381 is an apocalyptic number.

It is an amenable number.

706478407381 is a deficient number, since it is larger than the sum of its proper divisors (155376971).

706478407381 is a wasteful number, since it uses less digits than its factorization.

706478407381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155376970.

The product of its (nonzero) digits is 6322176, while the sum is 55.

The spelling of 706478407381 in words is "seven hundred six billion, four hundred seventy-eight million, four hundred seven thousand, three hundred eighty-one".