46737121381 has 2 divisors, whose sum is σ = 46737121382. Its totient is φ = 46737121380.

The previous prime is 46737121369. The next prime is 46737121439. The reversal of 46737121381 is 18312173764.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40575656356 + 6161465025 = 201434^2 + 78495^2 .

It is a cyclic number.

It is not a de Polignac number, because 46737121381 - 2²³ = 46728732773 is a prime.

It is a super-2 number, since 2×46737121381² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46737128381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23368560690 + 23368560691.

It is an arithmetic number, because the mean of its divisors is an integer number (23368560691).

Almost surely, 2^46737121381 is an apocalyptic number.

It is an amenable number.

46737121381 is a deficient number, since it is larger than the sum of its proper divisors (1).

46737121381 is an equidigital number, since it uses as much as digits as its factorization.

46737121381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The spelling of 46737121381 in words is "forty-six billion, seven hundred thirty-seven million, one hundred twenty-one thousand, three hundred eighty-one".