38851357970 has 32 divisors (see below), whose sum is σ = 71509421808. Its totient is φ = 15192223488.

The previous prime is 38851357957. The next prime is 38851357973. The reversal of 38851357970 is 7975315883.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 27582898561 + 11268459409 = 166081^2 + 106153^2 .

It is a super-2 number, since 2×38851357970² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38851357973) 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, 14492 + ... + 279128.

Almost surely, 2^38851357970 is an apocalyptic number.

38851357970 is a deficient number, since it is larger than the sum of its proper divisors (32658063838).

38851357970 is a wasteful number, since it uses less digits than its factorization.

38851357970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264974.

The product of its (nonzero) digits is 6350400, while the sum is 56.

The spelling of 38851357970 in words is "thirty-eight billion, eight hundred fifty-one million, three hundred fifty-seven thousand, nine hundred seventy".