71648390049 has 8 divisors (see below), whose sum is σ = 95583597312. Its totient is φ = 47739388080.

The previous prime is 71648389877. The next prime is 71648390063. The reversal of 71648390049 is 94009384617.

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

It is not a de Polignac number, because 71648390049 - 2¹⁷ = 71648258977 is a prime.

It is a super-2 number, since 2×71648390049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71648389983 and 71648390010.

It is not an unprimeable number, because it can be changed into a prime (71648390249) 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, 6544942 + ... + 6555879.

It is an arithmetic number, because the mean of its divisors is an integer number (11947949664).

Almost surely, 2^71648390049 is an apocalyptic number.

It is an amenable number.

71648390049 is a deficient number, since it is larger than the sum of its proper divisors (23935207263).

71648390049 is a wasteful number, since it uses less digits than its factorization.

71648390049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13102647.

The product of its (nonzero) digits is 1306368, while the sum is 51.

The spelling of 71648390049 in words is "seventy-one billion, six hundred forty-eight million, three hundred ninety thousand, forty-nine".