397764132948 has 192 divisors, whose sum is σ = 1284890826240. Its totient is φ = 104904616320.

The previous prime is 397764132943. The next prime is 397764132959. The reversal of 397764132948 is 849231467793.

397764132948 is a `hidden beast` number, since 3 + 97 + 76 + 413 + 29 + 48 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397764132943) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 546238 + ... + 1045898.

It is an arithmetic number, because the mean of its divisors is an integer number (6692139720).

Almost surely, 2^397764132948 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397764132948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (642445413120).

397764132948 is an abundant number, since it is smaller than the sum of its proper divisors (887126693292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397764132948 is a wasteful number, since it uses less digits than its factorization.

397764132948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499706 (or 499686 counting only the distinct ones).

The product of its digits is 54867456, while the sum is 63.

The spelling of 397764132948 in words is "three hundred ninety-seven billion, seven hundred sixty-four million, one hundred thirty-two thousand, nine hundred forty-eight".