46997247781 has 16 divisors (see below), whose sum is σ = 53134534656. Its totient is φ = 41181750000.

The previous prime is 46997247769. The next prime is 46997247797. The reversal of 46997247781 is 18774279964.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 46997247781 - 2²³ = 46988859173 is a prime.

It is a super-2 number, since 2×46997247781² (a number of 22 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 (46997247761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188955 + ... + 360136.

It is an arithmetic number, because the mean of its divisors is an integer number (3320908416).

Almost surely, 2^46997247781 is an apocalyptic number.

It is an amenable number.

46997247781 is a deficient number, since it is larger than the sum of its proper divisors (6137286875).

46997247781 is a wasteful number, since it uses less digits than its factorization.

46997247781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549384.

The product of its digits is 42674688, while the sum is 64.

The spelling of 46997247781 in words is "forty-six billion, nine hundred ninety-seven million, two hundred forty-seven thousand, seven hundred eighty-one".