71406137641 has 8 divisors (see below), whose sum is σ = 71738220960. Its totient is φ = 71074208448.

The previous prime is 71406137639. The next prime is 71406137657. The reversal of 71406137641 is 14673160417.

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

It is a cyclic number.

It is not a de Polignac number, because 71406137641 - 2¹ = 71406137639 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71406137594 and 71406137603.

It is not an unprimeable number, because it can be changed into a prime (71406132641) 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, 948705 + ... + 1021201.

It is an arithmetic number, because the mean of its divisors is an integer number (8967277620).

Almost surely, 2^71406137641 is an apocalyptic number.

It is an amenable number.

71406137641 is a deficient number, since it is larger than the sum of its proper divisors (332083319).

71406137641 is a wasteful number, since it uses less digits than its factorization.

71406137641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77063.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 71406137641 in words is "seventy-one billion, four hundred six million, one hundred thirty-seven thousand, six hundred forty-one".